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TanA+secA-1/tanA-secA+1= 1+sinA/cosA |
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Answer» Answer: tanA + secA - 1 / tanA - secA + 1 = 1 + SINA / COSA LHS = tanA + secA -1 / tanA - secA + 1 = tanA + secA + tan2A - SEC2A / tanA - secA + 1 as tan2A + 1 = sec2A = tanA + secA +(tanA + secA)(tanA - secA)/ tanA - secA + 1 = tanA + secA( 1 + tanA - secA) / tanA - secA + 1 =tanA + secA = sinA / cosA + 1/cosA = sinA + 1 / cosA Step-by-step explanation:
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