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mathematics
applied calculus

Questions and Answers of Applied Calculus

Sum an appropriate infinite series to find the rational number whose decimal expansion is given. .272727
A mortgage of $100,050 is repaid in 240 monthly payments of $900. Determine the monthly rate of interest.
Find the sum of the given infinite series if it is convergent. + + + + 1 +
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 00 k= 2k + 1 ik² + k + 2 2
Use a second Taylor polynomial at x = 0 to estimate the area under the curve y = ln(1 + x2) from x = 0 to x = 1/2.
A $663 flat-screen TV is purchased with a down payment of $100 and a loan of $563 to be repaid in five monthly installments of $116. Determine the monthly rate of interest on the loan.
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) ke*² k=1
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 00 k=1 k-3/4
Find the Taylor series at x = 0 of the given function. Use suitable operations (differentiation, substitution, etc.) on the Taylor series at x = 0 of1 - e-x 1 1- x 9 et, or cos x.
Find the Taylor series at x = 0 of the given function. Use suitable operations (differentiation, substitution, etc.) on the Taylor series at x = 0 of3(e-2x - 2) 1 1- x 9 et, or cos x.
Determine all Taylor polynomials for f (x) = x2 + 2x + 1 at x = 0.
An investor buys a bond for $1000. She receives $10 at the end of each month for 2 months and then sells the bond at the end of the second month for $1040. Determine the internal rate of return on
Determine the sums of the following geometric series when they are convergent. 5 +4+3.2 + 2.56 +2.048 +
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 00 1 k=1e²k+1
Find the Taylor series at x = 0 of the given function. Use suitable operations (differentiation, substitution, etc.) on the Taylor series at x = 0 ofx3ex2 1 1- x 9 et, or cos x.
Determine the sums of the following geometric series when they are convergent. 3² + 34 36 38 + 28 + 211 214 + 310 + 217
Suppose that an investment of $500 yields returns of $100, $200, and $300 at the end of the first, second, and third months, respectively. Determine the internal rate of return on this investment.
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 00 Σ 03-k k=1
Sketch the graphs of f (x) = sin x and its first three Taylor polynomials at x = 0.
Use the Newton–Raphson algorithm with n = 3 to approximate the solution of the equation e2x = 1 + e-x.
Use the Newton–Raphson algorithm to find an approximate solution to e5-x = 10 - x.
Find the Taylor series at x = 0 of the given function. Use suitable operations (differentiation, substitution, etc.) on the Taylor series at x = 0 of5ex/3 1 1- x 9 et, or cos x.
Determine the sums of the following geometric series when they are convergent. 2 54 T 55 x 27 56 210 210 213 + 57 58
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 00 7 k=0k + 100
Determine the sums of the following geometric series when they are convergent. 1 + -1 + P + + 212 +
Use the Newton–Raphson algorithm to find an approximate solution to e-x = x2.
Determine the sums of the following geometric series when they are convergent. 1 - 1 3² + 1 1 1 34 36 38 +
Find the Taylor series at x = 0 of the given function by computing three or four derivatives and using the definition of the Taylor series.(1 + x)3
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 00 1 k=2 (k-1)³
Determine the third Taylor polynomial of the given function at x = 0.f(x) = 5e2x
Find the fifth Taylor polynomial of x3 - 7x2 + 8 at x = 0.
State the remainder formula for the nth Taylor polynomial of f (x) at x = a.
Use three repetitions of the Newton–Raphson algorithm to approximate the following:3√6
Determine the sums of the following geometric series when they are convergent. 1 + + 3|4 + 3|4 + ele + 4
Find the Taylor series at x = 0 of the given function by computing three or four derivatives and using the definition of the Taylor series.√1 + x
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 5 k=1k³/2
Determine the third Taylor polynomial of the given function at x = 0.f (x) = e-x/2
Find the fourth Taylor polynomial of (2x + 1)3/2 at x = 0.
In what way is the nth Taylor polynomial of f (x) at x = a like f (x) at x = a?
Use three repetitions of the Newton–Raphson algorithm to approximate the following:√7
Find the Taylor series at x = 0 of the given function by computing three or four derivatives and using the definition of the Taylor series.ln(1 - 3x)
Find the second Taylor polynomial of x(x + 1)3/2 at x = 0.
Determine the third Taylor polynomial of the given function at x = 0.f (x) = sin x
Define the nth Taylor polynomial of f (x) at x = a.
Use the integral test to determine whether the infinite series is convergent or divergent. (You may assume that the hypotheses of the integral test are satisfied.) 00 3 k=1Vk
Use three repetitions of the Newton–Raphson algorithm to approximate the following:√5
Find the Taylor series at x = 0 of the given function by computing three or four derivatives and using the definition of the Taylor series. 1 2x + 3
Determine the sums of the following geometric series when they are convergent. 1 + 1 6 + 1 + 6² 1 1 64 63 +
Refer to the differential equation in Exercise 39.(a) Obviously, if you start with zero fish, f(t) = 0 for all t. Confirm this on the slope field. Are there any other constant solutions?(b) Describe
Let f (t) denote the number (in thousands) of fish in a lake after t years, and suppose that f (t) satisfies the differential equation y′ = 0.1y (5 - y). The slope field for this equation is shown
The Gompertz growth equation iswhere a and b are positive constants. This equation is used in biology to describe the growth of certain populations. Find the general form of solutions to this
Draw the graph of g(x) = ex - 100x2 - 1, and use the graph to sketch the solution of the differential equation y′ = ey - 100y2 - 1 with initial condition y(0) = 4 on a ty-coordinate system.
Use Euler’s method with n = 5 on the interval 0 ≤ t ≤ 1 to approximate the solution f (t) to y' 2 (-10), y(0) = 9.
Draw the graph of g(x) = (x - 2)2 (x - 6)2, and use the graph to sketch the solutions of the differential equation y′ = (y - 2)2 (y - 6)2 with initial conditions y(0) = 1, y(0) = 3, y(0) = 5, and
One problem in psychology is to determine the relation between some physical stimulus and the corresponding sensation or reaction produced in a subject. Suppose that, measured in appropriate units,
When a certain liquid substance A is heated in a flask, it decomposes into a substance B at such a rate (measured in units of A per hour) that at any time t is proportional to the square of the
A parachutist has a terminal velocity of -176 feet per second. That is, no matter how long a person falls, his or her speed will not exceed 176 feet per second, but it will get arbitrarily close to
A model that describes the relationship between the price and the weekly sales of a product might have a form such aswhere y is the volume of sales and p is the price per unit. That is, at any time,
The functionis the solution of the differential equation y′ = .0002y(5000 - y) from Example 8.(a) Graph the function in the window [0, 10] by [-750, 5750].(b) In the home screen, compute .0002
Suppose that, once a sunflower plant has started growing, the rate of growth at any time is proportional to the product of its height and the difference between its height at maturity and its current
Solve the following differential equations with the given initial conditions. dy dt t + 1 ty −, t > 0, y(1) = −3
Some homeowner’s insurance policies include automatic inflation coverage based on the U.S. Commerce Department’s construction cost index (CCI). Each year, the property insurance coverage is
Mothballs tend to evaporate at a rate proportional to their surface area. If V is the volume of a mothball, then its surface area is roughly a constant times V2/3. So the mothball’s volume
In certain learning situations a maximum amount, M, of information can be learned, and at any time, the rate of learning is proportional to the amount yet to be learned. Let y = f (t) be the amount
Let t represent the total number of hours that a truck driver spends during a year driving on a certain highway connecting two cities, and let p(t) represent the probability that the driver will have
In the study of the effect of natural selection on a population, we encounter the differential equationwhere q is the frequency of a gene a and the selection pressure is against the recessive
Solve the following differential equations with the given initial conditions. dy dt t = (1 + 7) ² y y(0) = 2
Consider the differential equation y′ = .2(10 - y) from Example 6. If the initial temperature of the steel rod is 510°, the function f (t) = 10 + 500e-0.2t is the solution of the differential
Let f (t) be the solution to y = (t + 1)/y, y(0) = 1. Use Euler’s method with n = 3 on 0 ≤ t ≤ 1 to estimate f (1). Then, show that Euler’s method gives the exact value of f (1) by solving
The birth rate in a certain city is 3.5% per year, and the death rate is 2% per year. Also, there is a net movement of population out of the city at a steady rate of 3000 people per year. Let N = f
Suppose that in a chemical reaction, each gram of substance A combines with 3 grams of substance B to form 4 grams of substance C. The reaction begins with 10 grams of A, 15 grams of B, and 0 grams
Morphine is a drug that is widely used for pain management. However, morphine can cause fatal respiratory arrest. Since pain perception and drug tolerance vary with patients, morphine is gradually
The health officials that studied the flu epidemic in Example 8 made an error in counting the initial number of infected people. They are now claiming that f (t) (the number of infected people after
Solve the initial-value problem.y′ + y = e2t, y(0) = -1
Solve the following differential equations with the given initial conditions. y' = y , y(0) = -5
A certain drug is administered intravenously to a patient at the continuous rate of r milligrams per hour. The patient’s body removes the drug from the bloodstream at a rate proportional to the
On the slope field in Fig. 4(a) or a copy of it, draw an approximation of a portion of the solution curve of the differential equation y′ = t - y that goes through the point (0, 2). In your
Solve the initial-value problem.ty′ - y = -1, y(1) = 1, t > 0
Solve the following differential equations with the given initial conditions. dy dx In x Vxy y(1) = 4
Solve the following differential equations with the given initial conditions.y′ = 5ty - 2t, y(0) = 1
Figure 8 shows a portion of the solution curve of the differential equation y′ = 2y (1 - y) through the point (0, 2). On Fig. 8or a copy of it, draw an approximation of the solution curve of the
A bank account has $20,000 earning 5% interest compounded continuously. A pensioner uses the account to pay himself an annuity, drawing continuously at a $2000 annual rate. How long will it take for
Figure 8 shows a slope field of the differential equation y′ = 2y (1 - y). With the help of this figure, determine the constant solutions, if any, of the differential equation. Verify your answer
Solve the initial-value problem.y′ + 2y cos(2t) = 2 cos(2t), y(π/2) = 0
A continuous annuity of $12,000 per year is to be funded by steady withdrawals from a savings account that earns 6% interest compounded continuously.(a) What is the smallest initial amount in the
Solve the initial-value problem.ty′ + y = sin t, y(π/2) = 0, t > 0
Consider the initial-value problem(a) Is the solution increasing or decreasing when t = 0?(b) Find the solution and plot it for 0 ≤ t ≤ 4. y' : = y 1 + t +10, y(0) 50.
Let f (t) be the solution to y′ = 2e2t-y, y(0) = 0. Use Euler’s method with n = 4 on 0 ≤ t ≤ 2 to estimate f (2). Then show that Euler’s method gives the exact value of f (2) by solving the
If y0 > 1, is the solution y = f (t) of the initial-value problem y′ = 2y (1 - y), y (0) = y0, decreasing for all t > 0? Answer this question based on the slope field shown in Fig. 8.
Rectangles have been drawn to approximate ∫60 g(x) dx.(a) Do the rectangles represent a left or a right sum?(b) Do the rectangles lead to an upper or a lower estimate?(c) What is the value of
(a) Use Figure 5.84 to find ∫60 f(x) dx.(b) What is the average value of f on the interval x = 0 to x = 6? 4 3 2 1 نرا f(x) 1 2 3 4 5 6 Figure 5.84 X
A cup of coffee at 90◦C is put into a 20◦C room when t = 0. The coffee’s temperature is changing at a rate of r(t) = −7(0.9t) ◦C per minute, with t in minutes. Estimate the coffee’s
Find the area under the graph of f(x) = x2 +2 between x = 0 and x = 6.
Explain in words what the integral represents and give units.∫31 v(t) dt, where v(t) is velocity in meters/sec and t is time in seconds.
You travel 30miles/hour for 2 hours, then 40miles/hour for 1∕2 hour, then 20 miles/hour for 4 hours.(a) What is the total distance you traveled?(b) Sketch a graph of the velocity function for this
Use Figure 5.85 to estimate the following:(a) The integral ∫50 f(x) dx.(b) The average value of f between x = 0 and x = 5 by estimating visually the average height.(c) The average value of f
Rectangles have been drawn to approximate ∫60 g(x) dx.(a) Do the rectangles represent a left or a right sum?(b) Do the rectangles lead to an upper or a lower estimate?(c) What is the value of
Figure 5.9 shows the velocity of an object for 0 ≤ t ≤ 6. Calculate the following estimates of the distance the object travels between t = 0 and t = 6, and indicate whether each result is an
Figure 5.28 shows a Riemann sum approximation with n subdivisions to ∫ba f(x) dx.(a) Is it a left- or right-hand approximation? Would the other one be larger or smaller?(b) What are a, b, n,
If the marginal cost function C'(q) is measured in dollars per ton, and q gives the quantity in tons, what are the units of measurement for ∫900800 C'(q) dq? What does this integral represent?

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