1.

1+sinA/cosecA-cotA-1-sinA/cosecA+cotA=2(1+cosA)

Answer»

ANSWER:

Step-by-step EXPLANATION:

Solving LHS,

1+sin A / COSEC A - cot A - 1- sin A/ cosec A+cot A

(1+sin A)(cosec A+ cot A) - (1-sin A)(cosec A- cot A) / cosec 2 A - cot2 A ......[(a+b)(a-b) =a2- b2]

cosec A + cot A + 1 + COS A - cosec A + cot A + 1 - cos A

2 + 2 cot A

2(1+ cot A) = RHS



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