Question

If cosθ=3√/2 which of the following could also be true?θ=−π6theta is equal to negative pi over 6tanθ=1tangent theta is equal to 1sinθ=0sine theta is equal to 0cos−1θ=π6didn't mean to select an answer yet on my homework sorry

Answer 1

θ = -π/6

Step-by-step explanation:

We know that cosine is an even function, so

cos(-π/6) = cos(π/6)

Since cos(π/6) = √3/2, then

cos(-π/6) = √3/2

Therefore, when cosθ = √3/2, θ could be -π/6

So, the answer is

θ = -π/6