(Sec A-Cosec A)(1+ Tan A+CotA)=TanAsecA-cotAcosecA.
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= (secA - cosecA)(1+tanA+cotA)= secA + tanA.secA + cotA.secA - cosecA - cosecA.tanA - cosecA.cotA= secA + sinA.sec^2A + cosecA - cosecA - secA - cosec^2A.cosA = sinA/cos^2A - cosA/sin^2A= (sinA/cosA)secA - (cosA/sinA)cosecA
= tanA.secA - cotA.cosecA ( RHS )hence proved:hope this ans would help u..
= tanA.secA - cotA.cosecA ( RHS )hence proved:hope this ans would help u..
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LHS RHS PROVED HENCE PROVED
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