Question: Express cos 4x in terms of cos x only.

Express cos 4x in terms of cos x only.

Step by Step Solution

★★★★★

3.38 Rating (157 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

We can use the identity cos2a 2 cosa 1 to write cos4x in terms of cos2... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Basic Technical Mathematics Questions!

Q:

Rewrite cos 4x in terms of cos x.

Q:

Find an equivalent expression for cos 4x in terms of function values of x.

Q:

i. By differentiating cosx/sinx that if ii. By expressing cot2 x in terms of cosec2 x and using the result of part i, show that iii. Express cos 2x in terms of sin2 x and hence show that 1/1 - cos2x...

Q:

Consider the indefinite integral / 7x+ 6x-+ 5x + 3 x4 + 1x2 Then the integrand has partial fractions decomposition a b CI + d + - + x2 +1 where b= d= Integrating term by term, we obtain that 7x' +...

Q:

7. {0/1 Points] skipped part. Tutorial Exercise Use a double-angle formula to rewrite the expression. 9 sinxcosx sin 2u = PREVIOUS ANSWERS LARPCALC10 5.5.016.MI.SA. This question has several parts...

Q:

a) Simplify (x5 + 5)(\\( 5). b) Express V12 + V2? in the form m5, where n is an integer. c} Rationalise the expression 1 1+v2 3) Express x2 + 4x 7 in the form {x + p)2 - q, where p and q are...

Q:

1-A point P(x, y) is shown on the unit circle U corresponding to a real number t. Find the values of the trigonometric functions at t. sin t = cos t = tan t = csc t = sec t = cot t = 2-Let P(t) be...

Q:

Use the formula for lowering the powers to simplify the expression a If cos 4x sin 4x cos f x then f x b If cos 4x sin 4x cos g x then g x Hint For part b use a b a b a 6

Q:

Express sin 4x in terms of sin x and cos x.

Q:

Pls help (1) Evaluate cos xdx Hint: Express cos* x in terms of sin x. Then use the substitution u = sin x. Back substitute to write your soluton in terms of x solution = + (2) Evaluate cos2 xdx Hint:...

Q:

Match the following financial ratios that are based on comprehensive annual financial report (CAFR) information with the explanation for that ratio. Answer can be used once. Ratio 1. General fund...

Q:

Staples offer CDs ($2.00) and boxes of computer paper ($3). If total sales were $1,560 and customers bought 5 times as many CDs as boxes of computer paper, how many CDs were sold?

Q:

Evaluate the integral. / 2 5 sin 2 x cos 2 x dx 0

Q:

=+c. Does your experimental design use blocking? Explain

Q:

In problem, match each graph to one the following functions. f(x) = x 2 - 2x A. B. C. D. E. F. G. H. 3 -2 -1- (-1, 0) , 2 2 -2 (-1, 1)

Q:

In problem, graph each quadratic function using transformations (shifting, compressing, stretching, and/or reflecting). f(x) = -3(x + 2) 2 + 1

Q:

In problem, (a) Draw a scatter diagram. (b) Select two points from the scatter diagram and find the equation of the line containing the points selected. (c) Graph the line found in part (b) on the...

Q:

a Ballpark has 61,000 shares of $16.00 par Common stock outstanding Ballpark annonces stock split 4- for - 1. What is the effect of the split? Pina If Western Sales Purchases an additiondi 8,000...

Q:

Chapter 11 Question 4 Which of the following is the best example of a sunk cost? a) Future payments on a leased building. b) Future research and development costs. c) Historical research and...

Q:

Wells Technical Institute (WTI), a school owned by Tristana Wells, provides training to individuals who pay tuition directly to the school. WTI also offers training to groups in off-site locations....