Question

plzzz explain this question plzzzz detail​

Answer 1

Answer is 1

because

cosec a (1+cosa)(cosec a -cot a)

=(cosec a +(cos a × cosec a))(cosec a -cot a)

=(cosec a +cot a)(cosec a - cot a)

=1

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Answer 2

Step-by-step explanation:

Please refer to the attachment for the solution.

Identities used :

➡ cosec A = 1/sin A

➡ cos A/ sin A = cot A

➡ 1 + cot²A = cosec²A

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