Question

if sec5¢=cosec7¢. prove that¢=7.5°(it is urgent)​

Answer 1

Assuming the angle to be A.

We are given,

sec5A = cosec7A

=> cosec(90° - 5A) = cosec7A

=> 90° - 5A = 7A

=> 12A = 90°

=> A = 7.5°