Question

if cot2Q=tan4Q where 2Q and 4 Q are acuye angles .then find the value of sin3Q

Answer 1

cot 2theta=cot(90-4theta)
2theta=4theta
4theta-2thata=0
2theta=0
theta=0
sin 3theta=sin 0
=0

Answer 2

I hope this may help u