Question

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Answer 1

Step-by-step explanation:

$cotA-cosA/cotA+cosA =cosecA-1/cosecA+1$

$lhs= cotA-cosA/cotA+cosA\\= (cosA/sinA-cosA )/(cosA/sinA +cosA)\\=cosA (1/sinA -1) /cosA(1/sinA+1)\\=(1/sinA-1) / (1/sinA+1)\\=cosecA-1/cosecA+1$

$Hence Prooved......... Mark As Brainliest$

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