Trig 2--cofunctions and identities

Convert the following to degrees:
-8π/5 radians

• -288⁰
• -260⁰
• -275⁰

Evaluate: csc(3π/4)

• √2/2

• -√2/2

• √2

• -√2

sec 3π/2

• 0
• undefined
• 1
• -1

What is a complete circle in radians?

• π
• 2π
• 1/2 π
• 1

sin(90 - u)

• sec(u)

• cos(u)

• tan(u)

• csc(u)

• cot(u)

sec(-u)

• cos(u)

• -cos(u)

• sin(u)

• -sec(u)

• sec(u)

*

• csc x
• sec x
• cot x
• tan x

Select all that are Pythagorean Identities.

• sin²(u) + cos²(u) = 1

• sin²(u) - cos²(u) = 1

• tan²(u) + 1 = sec²(u)

• cot²(u) + csc²(u) = 1

• cot²(u) + 1 = csc²(u)

Solve the following for cos²θ:
sin²θ + cos²θ = 1

• cos²θ = 1 - sin²θ
• cosθ = 1 + sin²θ
• cosθ = 1 - sinθ
• cos²θ = Adj/hyp

Please select the correct solution

• csc² x
• cot² x
• sin² x
• sec² x