Question

Given: cos(90° - 2A). sec 76° = 1; find the value of angle A.​

Answer 1

Answer:

Explanation:

I think it goes like this:

Sec = 1/cos

cos 38 * 1/cos (90-2a) = 1

38(90-2a) = 1

3420 - 76a = 1

3420 = 76a

3420/76= a

45 = a!!