Question

When Θ = 5 pi over 6, what are the reference angle and the sign values for sine, cosine, and tangent?

Θ' = negative pi over 6; sine and cosine are positive, tangent is negative.

Θ' = 5 pi over 6; sine and tangent are positive, cosine is negative

Θ' = pi over 6; sine is positive, cosine and tangent are negative

Θ' = negative 5 pi over 6; sine is positive, cosine and tangent are negative