Question

Sin theta=cos theta(theta-45) where theta and (theta-45) are cute angle

Answer 1

Answer:

67.5

Step-by-step explanation:

Sin theta = Cos (theta - 45) ....Eq 1

Since we know that for acute angle

Sin theta = Cos (90 - theta) ....Eq 2

On Comparing Equation 1 and 2

Cos (theta - 45) = Cos (90 - theta)

Therefore

Theta - 45 = 90 - theta

2(theta) = 90 + 45 = 135

Theta = 135/2 = 67.5

Therefore theta is 67.5