Find the exact value of the expression given below. cos(15)

Q: Find the exact value of the given expression. con(2 tam (4) cos 2 tan

A: 1

Q: Find the exact value of cot cos - - 6.

A: Given:            cotcos−1−56

Q: Find all values of the given quantity. (Enter your answers as a comma-separated list.) cos-¹(1) n =…

A: We will use that  cos θ = 1 for θ = 2nπ  ,where n = 0, ±1, ±2, ±3, ...

Q: Use the addition and subtraction formulas to simplify the expression. cos(x+y) cos(x - y)

A: Given,            cosx + y cosx - y

Q: Use identities to simplify the expression. 1 tan?a - 2 cos cos -a 1 tan a - %3D 2 Cos Fa II

A: We can simplify the expression as below.

Q: Find the function value. cos 0.8215

A: Our Aim is to find the function value of cos (0.8215).

Q: Find the value of the trig function indicated. cos e O 2√5 啊啊 O 5 2 O 7 25 √5 5 0 9√/5

A:

Q: Use the given value to evaluate each function. 2 cos(t) 5 cos(π - t) (a) (b) = cos(t + n)

A: We have to find the values of cosπ-t and cost+π, using the value of cost=25.

Q: Determine the exact value of cos ہ اس + Sl 6

A:

Q: The function graphed is of the form y = a sin bx or y = a cos bx, where b > 0. Determine the…

A: In the graph, at x=0,  y=5 First check y=a sinbx at x=0,  y=5 5=a sin0 5=0                ∵sin(0)=0…

Q: Find the exact value of cos. O undefined 1/2

A: