In Problems 21–30, find the exact value. Do not use a calculator. 117 25. csc 117 21. sin 22. cos (77) 23. tan (67) 24. cot 37 28. sin (-37) 29. sec(-7) 30. tan(-37) 26. sec(87) 27. cos

Q: If 0 then 4 sin(8) = cos(0) =

A:

Q: If Sin(A)=Cos(3A) then Cot(4A)

A: Given  Sin A=Cos 3A To evaluate Cot 4A=?

Q: 6) Evaluate the following without a calculator arccos (sin (-)

A:

Q: In Problems 1–8, find the exact value of each expression. Do not use a calculator.

A: Note: According to the guidelines only three parts will be answered please upload other parts…

Q: 2. sinx = -41 over the interval (-∞o, co) *Round all answers to 3 decimal places*

A: To find out the solutions of the given trigonometric equation over the given interval.

Q: 19. sine = and tan 0 =

A:

Q: In Problems 45–52, find the exact value of each expression.

A:

Q: Without a calculator, evaluate the following exactly. a) cos-1(1/2) b) cos-1(-1/2) c)…

A: (a). Given,

Q: If we evaluate the expression cos(7) + cos?() + sin?() + tan() without using a calculator, we find…

A:

Q: Select the best answer. cos( - 1) =

A:

Q: 4. To find sin(cosA), we let 0 = cos"() and complete the right triangle at the top of the next…

A: The value of sincos-1513 can be calculated as, Let, cos-1513=θ      ⇒cosθ=513  A right angled…

Q: 3. cos?= -1/3 and ? is not in QII sin? = tan ? = cot? = sec? = csc? =

A:

Q: 50. cos(27-0) = cos 0

A:

Q: If cos(z)= Give exact answers. ¹(²7) · 17 19 sin (in Quadrant-III), find

A: