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छा 9+5600-1 _ [+ आए 0दि 9-5600+1... ८080 (c) S,i पट |
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Answer» To prove: ( tanA + secA -1)/( tanA- secA+1) = (1+sinA)/cosA Proof: (tanA - secA) - (sec2A - tan2A)/tanA + 1 - secA (tanA - secA) (1 - (secA - tanA))/tanA + 1 - secA (tanA - secA) (1 - secA + tanA)/tanA + 1 - secA sec A + tan A 1/cosA + sinA/cosA 1 + sinA/cosA Hence, Proved |
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