Question

Cot,(90-4a)=cot20
Tan (90-2a)

Answer 1

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Answer 2

HÖLA MATE

HERE IS UA ANSWER:


Cot(90-A)/tanA + cosec(90-A) sinA/tan(90-A)

tanA/tanA + secA.sinA/cotA

1 + sin^2A/cos^2A

cos^2A + sin^2A/ cos^2A

1/cos^2A

sec^2A

HOPE IT HELPS..