Question

If θ and 3θ-30° are acute angles such that sinθ=cos(3θ-30°),then find the value of tanθ.

Answer 1

Given Sin @= cos (3@-30) Or cos (90-@) = cos (3@-30) Or 90-@=3@-30 Or 90+30=3@+@ Or 120=4@ Or @=30 Now Tan @=tan 30 = 1/ root 3

Answer 2

Answer:

i just copied the upper one