Question

detailed step by step pls these ones are scary​

Answer 1

Step-by-step explanation:

1-tan^2A= Sec^2A and cot^2A-1=cosec^2A substitute this and get the answer

Answer 2

Answer:

Simplifying the LHS of

cot 2 A−1/

1−tan 2 A=tan2 A.

cot 2 A−1

1−tan 2 A

= sin2 A/cos2 A−1/

1−cos2 A/sin2 A

=sin2 A/cos2 A−sin2 A/

cos2 A/cos 2 A-sin2 A

= cos2 A/sin2 A

=tan2 A

=RHS

Step-by-step explanation:

I had given you the ans

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