then 3 cos(0) = %3D sin(0) = %3D Give exact values. No decimals allowed!

Q: Could you explain sin(2x) = 0 from 0 to 2pi?

A:

Q: Given that A = tan^−1 (3/4), find cos (2A).  Give exact answer

A: Given:

Q: Find  sin?,cos?,???tan?sin⁡θ,cos⁡θ,andtan⁡θ  if  csc?=−2921csc⁡θ=−2921    and  cos θ < 0.

A: Given Cosecθ=2921and we have to calculate the value of sin(θ), cos(θ), tan(θ)

Q: Find exact positive value of Cos ꆪ = 2/3

A:

Q: evaluate the following giving exact values when possible: cos(sin^(-1)(y/2))

A: Simplifying the given inverse trigonometric expression to find the desired value.

Q: 2. Without using a calculator, find the exact value of each: i. sin-¹ (sin()) = ii.cos-¹(cos(¹)) =…

A: The given data is: i.   sin-1sin5π4  Without using calculator, find the exact value.

Q: Find the value of cos (570)sin (510) + sin (- 330)cos (- 390)

A:

Q: For this problem, let sin 6 = 60 and cos e = 11 %3D 61 > 61 » and find tan 0

A:

Q: If sinX = -1/3 and cosX is positive, determine the exact value of cotX.

A: We know, cosx= ±√(1-sin2x) cotx= cosx/sinx

Q: Does cos (π/2 - x) = cos (x - π/2)? Explain with examples

A:

Q: let cosx=-4/5, pi<2<3pi/2. find csc(x/2).

A: Solved below

Q: If sec(α)=25.2/19.4, then what is the value of cos(α)? (options in image)

A:

Q: Evaluate sin[arccos(−1) + arctan(−1)].       Your result should be in exact values (do NOT use your…

A:

Q: show steps to simplify cos(2iln(i))

A: We have,    cos ( 2 i ln(i) )