Question

prove that cos 30 degree =[ (3)^1/2]/2

Answer 1

Here,

$\cos30 \degree = \frac{ {(3)}^{ \frac{1}{2} } }{2}$

• Simplifying RHS,

$\huge \implies \: \: \tt \frac{ {(3)}^{ \frac{1}{2} } }{2} \\ \\ \\ \huge \implies \: \: \tt \frac{ \sqrt{3} }{2}$

Thus,

$\sf \red{ \cos(30 \degree) \: \: = \frac{ \sqrt{3} }{2} }$

Answer 2

u answers is this please follow for more answers