Question

If 0 and 0-45° are measures of acute
angles and sin 0 = cos (0-45°), find the degree
measure of 0.​

Answer 1

Answer:

Sin (theta) = cos (theta -45)

so, Cos (90-theta) = cos (theta -45) [Cos(90-A) = SinA]

Hence, 90 - theta = theta - 45

so, theta = 135/2 = 67.5°