sinA -cosA+1/sinA+cosA-1=1/secA-tanA. prove this question
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L.H.S = tanA−secA+1
tanA+secA−1
= (tanA+secA)−(sec 2A−tan 2A) ÷ tanA−secA+1
= (tanA+secA)−(secA−tanA)(secA+tanA) ÷ tanA−secA+1
= (tanA+secA).[1−secA+tanA] ÷ tanA−secA+1
= tanA+secA
= sinA ÷ cosA + 1 ÷ cosA = 1 + sinA ÷ cosA
= R.H.S
Hence Proved
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