Question

Find the value of cos 30° − sin 60°.

Answer 1

0.87 is the answer to your question

hope it help you...

Answer 2

$\cos(30 \degree ) - \sin(60 \degree)$

By Using,

$\cos( \theta) = \sin(90 \degree - \theta ) \\ \cos(30 \degree ) = \sin(60 \degree)$

$\implies \sin(60 \degree) - \sin(60 \degree) = \boxed{0}$