Trig AP Test Prep

Which of the following choices is equivalent to the expression cos α(sec α − cos α)?

• cos²α

• cos α − sin α

• sin²α

• cot α − 1

If x is a positive acute angle and cos x = a, which of the following is an expression for tan x in terms of a?

Which of the following expressions is equivalent to sin θ?

Which of the following equations could represent the graph shown below?

• y = 3 sin 2x

• y = 2 sin 3x

• y = 3 sin x

• y = 2 sin 4x

• 0