Question

cos²(90-A)/sin² A=?


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Answer 1

Answer:

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Step-by-step explanation:

2 sin square A is the answer

Answer 2

Answer:

1

Step-by-step explanation:

cos²(90°-A)/cos²(90°-A) [Since cos²(90°-A)=sin²A

Both gets cancelled as they have been divided with each other.

Which = 1

Or,

If we take cos²(90°-A) = sin²A,

Also both will get cancelled.

Hope it helps.