Question

(Cosec+cot)²=(sec+1)÷sec-1

Answer 1

Step-by-step explanation:

LHS

(cosec+cot)²

=(1/sin+cos/sin)²

=(1+cos/sin)²

=(1+cos)²/sin²

=(1+cos)²/1-cos²

=(1+cos)²/(1-cos)(1+cos)

=(1+cos)/(1-cos)

=sec+1/sec-1