Simplify.

• sinθ
• cot²θ
• tan²θ
• cos²θ

Simplify

• -1
• sin θ
• csc θ
• 1

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.TF.C.8

CCSS.HSF.TF.C.9

cos35°sin55°+sin35°cos55°

• 0
• 1
• 2
• sin90°cos90°

Tags

CCSS.HSF.TF.C.9

Which of these is equivalent to 2cos²x − 3cosx = 0 ?

• -cos²x = 0

• cosx(2cosx + 3) = 0

• cosx(2cosx − 3) = 0

• cos x = ⅔

Tags

CCSS.HSF.TF.B.7

Find the exact value of the expression.
sin(5π/12)cos(π/4) - cos(5π/12)sin(π/4)

• 1/2
• -1/2
• -√(2)/2
• √(3)/2

Tags

CCSS.HSF.TF.C.9

Use the information about the angle θ, 0≤θ<2π to find the exact value of
sin (2θ)
1. sin θ= 3/5 , 0<θ<π/2

• 24/7
• 7/25
• 24/25
• 1/2

Tags

CCSS.HSF.TF.C.9

• csc x
• 1/sec x
• 1 + sec x
• sec x

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

Find the solution on the interval [0, 2π)

• 0; π
• π; π/4; 3π/4; 5π/4; 7π/4
• 0; π; π/4; 3π/4; 5π/4; 7π/4
• No Solution

Tags

CCSS.HSF.TF.B.7

Find all solutions in the interval [0, 2π): 2 sin ² x - sin x - 1 = 0.

• 2π/3, 4π/3, 3π/2

• 11π/6, π, 7π/6

• 7π/6, 11π/6, π/2

• π/6, π, 11π/6