Math, asked by maddy9004, 1 year ago

(cosecA-sinA)(sec A-cos A)(tan A+cot A)=1

Answers

Answered by mysticd
6
Solution :

LHS=(cosecA-sinA)(secA-cosA)(tan A+cotA)

=(cosecA-1/cosecA)(secA-1/secA)(tanA+cotA)

=[(cosec²A-1)/cosecA][(sec²A-1)/secA]

( tanA+cotA)

= (cot²A/cosecA)( tan²A/secA)(tanA+secA)

= [( cot²Atan²A)sinAcosA](tanA+secA)

= ( tanA + secA )( sinAcosA)

= tanAsinAcosA + secAsinAcosA

= cos²A + sin²A

= 1

= RHS

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