Question

15. sin A cot2
A+ cos2 A tan2 A=1.​

Answer 1

Answer:

We have to prove

sin2Acot2A+cos2Atan2A=1

We know that

sin2A+cos2A=1

So,

sin2Acot2A +cos2Atan2A=sin2Acos2Asin2A+cos2 Asin2Acos2A

=cos2A+sin2A

= 1

Step-by-step explanation:

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Answer 2

REFER TO THE ATTACHMENT!

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