Establish the identity. cot e-1 cot (20) = 2 cot 0 .3. 1- tan e 1-1/ cote cote-1 cot e-1 cote O A. cot (20) = 2 tan 0 21 cot0 cot'e 2 cote 1- tan 0 1-1/ cote cot 0-1 cot e cote-1 O B. cot (20) = 2. 2 tan e 21 cote cot 0 2 cote 1+ tan e 1+1/ cote cot 0+1 cote cot e-1 OC. cot (20) = tan 0 2/ cot0 cot°e 2 cote 2 tan 0 2/ cot0 cot0-1 cot e-1 OD. cot (20) = 1-tan 1-1/cot A ent A cot a 2 cotA

Q: 1. In this class, we always define our trig functions in terms of radians. How do we define 1…

A: Follow 2nd step.

Q: 3.) Use Valve an identity to find the the expression.. of the Sec²80-tan ²80 ?

A:

Q: Use the (x,y) coordinates in the given figure to find the value of the trigonometric function at the…

A:

Q: Determine the Quadrant in which angle O is located if cos < 0 and tan 0 > 0 (please see…

A: The problem is asking us to determine the quadrant in which an angle O is located given that cos(O)…

Q: The point (-5,3) lies on the terminal arm. Determine the exact value of cos 0. Show all work.

A:

Q: Find the exact value of cos20 given csce = – -- and tane > 0 Simplify the trigonometric expression…

A: Given that cscθ=-52 and tanθ>0. Need to find the exact value of cos2θ.

Q: 4. State the domain and the range of the cosine function.

A: The domain and range of Cosine function is determined directly from its definition. Cosine function…

Q: Give the signs of the trigonometric functions. 17) cos (523°) and tan (523°) A) + and - B) - and +…

A: First try to see the degree as the multiple of 90 and then see for the quadrant. The step by step…

Q: F. Find tan B. А. 20 с. A D. 3/4 m5 415 413. B.

A: We have to find the value of tanB using the given figure.

Q: 19. Simplify the expression tan æ+cot æ cot r - sec? x sec? x O - tan? æ tan? x

A:

Q: 3. Find the exact value of I tan + tan 10 I 15 I I 1- tan tan- 10 15

A: Formula:   .

Q: Let (8, 6) be a point on the terminal side of 0. Find the exact values of cos 0, csc 0, and tan 0.…

A: The figure

Q: Let be the angle between u and v. Find cos(0). cos(0) = u = [6, 5, -1], v = [1,-1, 1] Determine…

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Q: y= -2 +4 sin

A:

Q: 30) cosß

A: in fourth quadrant cos is positive and tan is negative

Q: 8) Find the exact value of: tan A+ tan B tan (A+B) -tan A tan B tan 80°+ tan55° 1-tan 80° tan55°…

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Q: 3. Which trigonometric function is represented in the graph below? 2.5 -2 15 0.5 -2m3 -mi2 -mis -m6…

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Q: If a, b, c> 0 such that a + b+c abc, find the value of tan a+ tan- b+ tan-c.

A: Introduction :

Q: Use the figure below to find the exact value of the trigonometric function of angle A. csc (A)

A: answer is in next step