Question

Which of the following is equivalent to sin 37°?Group of answer choicescos 37°cos 53°sin 53°sin 63°

Answer 1

Recall that:

$sin\theta=cos(90^{\circ}-\theta).$

Therefore:

$sin37^{\circ}=cos(90^{\circ}-37^{\circ}).$

Simplifying the above result, we get:

$sin37^{\circ}=cos53^{\circ}.$

Answer:

$\begin{equation*} cos53^{\circ}. \end{equation*}$