Question

Determine the value of alpha[0,2pi] for which sinalpha=cos(alpha/2)

Answer 1

You have to convert sin(alpha) into cos..

Can you tell me how we can do this ??

Answer 2

Do you know this :

\[\sin(\alpha) = \cos(90^{\circ} - \alpha)\]

Answer 3

Do you have keyboard with you @a11