Question

if tan 2A equal to COT A + 60 degree find the value of a where to a is an acute angle

Answer 1

A will be 30 degree as 2A will be 60 degree and both are acute angles

Answer 2

tan2A=cot (A+60)
Cot(90-2A)=cot (A+60)
90-2A=A+60
90-30=A+2A
3A=60
A=60/3
A=20