# Angles of any magnitude

## Interactive practice questions

Which expression is equal to $\sin\left(360^\circ+\theta\right)$sin(360°+θ)?

$\sin\theta$sinθ

A

$\cos\theta$cosθ

B

$-\sin\theta$sinθ

C

$-\cos\theta$cosθ

D

$\sin\theta$sinθ

A

$\cos\theta$cosθ

B

$-\sin\theta$sinθ

C

$-\cos\theta$cosθ

D
Medium
Less than a minute
State whether each of the following are equal to $\cos\theta$cosθ or not.
Find the value of $\cos0^\circ$cos0°.