Question: Find tan 2, cos 2, and sin 2 and the quadrant in which 2 lies, where cos = -4/5 and is in quadrant

Find tan 2θ, cos 2θ, and sin 2θ and the quadrant in which 2θ lies, where cos θ = -4/5 and θ is in quadrant III.

Step by Step Solution

★★★★★

3.43 Rating (162 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

tan 20 2... 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 Algebra And Trigonometry Graphs Questions!

Q:

Problem 3-15 (Static) Journal Entries; T-Accounts; Financial Statements [LO3-1, LO3-2, LO3-3, LO3-4] Froya Fabrikker A/S of Bergen, Norway, is a small company that manufactures specialty heavy...

Q:

Find the exact value of sin 2 and the quadrant in which 2 lies if cos = -4/5 and is in quadrant II.

Q:

Determine the quadrant in which each angle lies. 1. (a) 130 (b) 285 2. (a) 8.3 (b) 257 30 3. (a) 132 50 (b) 336 4. (a) 260 (b) 3.4

Q:

Determine the quadrant in which each angle lies. 1. (a) /4 (b) 3/4 2. (a) 11/8 (b) 9/8 3. (a) -/5 (b) 7/5

Q:

1. Find the exact values of the six trigonometric functions of if is in standard position and P is on the terminal side. P(5, 12) sin = cos = tan = csc = sec = cot = 2. Find the exact values of the...

Q:

Morana is trolling for salmon in Lake Ontario. She sets the fishing rod so that its tip is 1 m above water and the line forms an angle of with the water's surface. She knows that there are fish at a...

Q:

2) For each of the following, rewrite the expression as a trigonometric function of one angle. (a) cos(46) cos(24) + sin(46) sin(24) = cos( ) (b) cos(23) sin(4) - sin(23) cos(4) = sin( ) (c) cos(7)...

Q:

MATH 108 Summer 2017 Solve the equation. 1) 2 tan2x - 3 sec x = 0 2) 2 cos3 = cos 3)2 sin x cos x + cos x = 0 4) csc2x - 2cot2x = 0 Prove the identity. 5) tan2 x sin2 x = tan2 x -- sin2 Find the area...

Q:

$please help ! I have the 5 techniques which are being mentioned if needed MATH 143 - Module 7 Discussion Questions In problems 1 -5, access your course textbook and utilize the Guidelines for...

Q:

ll}. Estimate the percentage change in the function x) = 3x + as x decreases from 5 to 4.6. x 1. Use a half-angle formula of sine, cosine, and tangent to find the exact value of each expression. 2....

Q:

Hello! I hope all is well! Could you help me with these problems? Given the triangle, find the measure of angle A. Round answers to three decimal places. 107 7.24 8.69 34.916 degrees OO 164.723...

Q:

Use the financial statement data for the Bike-With-Us Corporation provided in Problem 3 to make the following calculations: A. Calculate the operating return on assets. B. Determine the effective...

Q:

On March 1, 2017, Sheridan Company sold 24,800 of its 9%, 20-year, $1,000 face value bonds at 98. Interest payment dates are March 1 and September 1, and the company uses the straight-line method of...

Q:

23. In a recent speech, the governor of your state announced: One of the biggest causes of juvenile delinquency in this state is the high rate of unemployment among 16 to 19 year olds. The low wages...

Q:

37. A study by Cimprich (A-35) tested the effects of an experimental intervention aimed at maintaining or restoring attentional capacity in 32 women during the three months after surgery for...

Q:

What test procedure can be used to test the hypotheses in Problem 10.130? Hypertension A study was performed relating neonatal blood-pressure level to neonatal taste responsiveness (Zinner et al....

Q:

Use a computer program to implement this test procedure and report a two-tailed p-value? Hypertension A study was performed relating neonatal blood-pressure level to neonatal taste responsiveness...

Q:

What are your overall conclusions based on your results? Hypertension A study was performed relating neonatal blood-pressure level to neonatal taste responsiveness (Zinner et al. [29]). To assess...

Q:

You own a stock portfolio invested 20 percent in Stock Q,20 percent in Stock R, 20 percent in Stock S, and 40 percent in Stock T. The betas for these four stocks are 0.68, 1.81,1.68, and 0,8 ,...

Q:

Problem 1 3 - 6 Calculating Expected Return [ LO 1 ] Consider the following information: \ table [ [ State of , \ table [ [ Probability of ] , [ State of ] ] , \ table [ [ Portfolio ] , [ Return if...

Q:

Your small remodeling business has two work vehicles. One is a small passenger car used for job-site visits and for other general business purposes. The other is a heavy truck used to haul equipment....