Question

Cos2x=cos60*cos30+sin60+cos30then sin2x=?

Answer 1

HEY MATE

HERE IS YOUR ANSWER

=>cos²x=1/2×√3/2+√3/2+√3/2
=>cos²x=√3/4+4√3/4
=>cos²x=5√3/4

=>sin²x=1 - cos²x
=>sin²x=1 - 5√3/4
=>sin²x=(4-5√3)/4

HOPE THIS HELPS YOU