Simplify Using Trig Identities

• csc x
• sec x
• 1/sec x
• cos x

• sin(x)

• cos(x)

• sec(x)

• csc(x)

• tan(x)

• cot(x)

• sec²(x)

• sin²(x)

• cos(x)

• tan²(x)

• cot(x)

• csc²(x)

• csc(x)

• sec(x)

• sin(x)

• cos(x)

• tan(x)

• cot(x)

Simplify the trig expression. #19

• sinx

• -sinx

• cosx

• 2sinx

Which of the following would be a step to prove the following identity?

• (1/ sin x) - (1 / cos x)

• (cos x - sin x) / ( sin x)

• (cos x - sin x) / (cos x)

• (1/ sin x cos x)

• sec x

• 1

• cot x

• -1

Expand and simplify using the Addition and Subtraction Identities \sin\ \left(90^o-y\right)

• sin²θ
• cosθ
• tanθ
• 1- sin²θ