Question

Trigonometry Question

Please solve it Fast ​

Answer 1

Step-by-step explanation:

3x1 = 3 cot^2 A x cosec^2 A + 1

3 = 3 x 1/sec^2(90-A) x sec^2(90-A) + 1

sec^2A and sec^2A gets cancelled

now,

3 = 3 x 1

3 = 3

hence proved