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CBSE Class 10 Answered

Prove that-- tanA+secA-1/tanA-secA+1 = 1+sinA/cosA
Asked by priyanshdhiman2008 | 25 Dec, 2023, 03:12: PM
answered-by-expert Expert Answer

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let us multiply the numerator and denominator of RHS by (  tanA + secA-1 )

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Let us use the identities " tan2A + 1 = sec2A " in numerator  and  " tan2A - sec2A = -1 " in denominator , then we have

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Let us cancel the common factor 2 in all the term and factorise the numerator , then we get

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Answered by Thiyagarajan K | 25 Dec, 2023, 11:15: PM

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