cosec A/cot A+tan A = cos A

cosec A / cot A + tan A = cos A
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1 Answer

cosecA/(cotA+tanA).

Multiply top and bottom by sinA: 1/(cosA+sin2A/cosA).

Multiply top and bottom by cosA:

cosA/(cos2A+sin2A)=cosA/1=cosA QED

by Top Rated User (1.2m points)

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