130_9.1_notes_Quiz

Fill in the blank: The identity tan(θ) = ___ is an example of a quotient identity.

• A) sin(θ)/cos(θ)

• B) cos(θ)/sin(θ)

• C) 1/sin(θ)

• D) 1/cos(θ)

Which identity is used to express sin(θ) in terms of csc(θ)?

• sin(θ) = 1/csc(θ)

• sin(θ) = csc(θ)

• sin(θ) = tan(θ)

• sin(θ) = cot(θ)

Fill in the blank: The identity cos(−θ) = ___ is an example of an even-odd identity.

• A) cos(θ)

• B) −cos(θ)

• C) sin(θ)

• D) −sin(θ)

Which of the following is a reciprocal identity?

• tan(θ) = sin(θ)/cos(θ)

• sec(θ) = 1/cos(θ)

• sin²θ + cos²θ = 1

• tan²θ + 1 = sec²θ

Which identity is used to express tan(θ) in terms of cot(θ)?

• tan(θ) = 1/cot(θ)

• tan(θ) = cot(θ)

• tan(θ) = sin(θ)

• tan(θ) = cos(θ)

Fill in the blank: The identity sin(−θ) = ___ is an example of an even-odd identity.

• A) sin(θ)

• B) −sin(θ)

• C) cos(θ)

• D) −cos(θ)

Fill in the blank: The identity tan(−θ) = ___ is an example of an even-odd identity.

• A) tan(θ)

• B) −tan(θ)

• C) cos(θ)

• D) −cos(θ)

Fill in the blank: The identity csc(θ) = ___ is an example of a reciprocal identity.

• 1/sin(θ)

• 1/cos(θ)

• sin(θ)

• cos(θ)

• 0

• 1

What is the factored form of the expression 2cos²θ + 4cosθ - 1?

• (2cosθ - 1)(cosθ + 1)

• (2cosθ + 1)(cosθ - 1)

• (2cosθ - 1)(2cosθ + 1)

• (cosθ - 1)(cosθ + 1)