Question

Use basic identities to simplify the expression.

a. cos^3 θ

b. tan^2 θ

c. sec^2 θ

d. sin θ

Answer 1

\[\frac{\tan \theta}{\sec \theta}=\frac{\frac{\sin \theta}{\cos \theta}}{\frac{1}{\cos \theta}}=\frac{\sin \theta}{\cos \theta}\times \frac{\cos \theta}{1}=\]