Question

. Find the value of thetatheta that makes each statement true.
d.sin(theta/3+10)=costheta.

Answer 1

60 degrees.

Explanation:

sin(theta/3+10)=costheta

Since sin theta = cos (90 - thets):

theta / 3 + 10 = 90 - theta

theta/3 + theta = 90 - 10

4/3 theta = 80

theta = 80 * 3/4 = 60 degrees.