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23-10-2020
Mathematics

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Prove (1-cosA)(1+CosA)(1+cot^2A)=1

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justinkaplanaz justinkaplanaz

23-10-2020

Answer:

= 1= RHS

Step-by-step explanation:

shee i got u bud ok LHS-

(1+cot^2A)(1+cosA)(1-cosA)

=Cosec^2A(1-cos^2A)

=1/sin^2A×(sin^2A)

= 1= RHS

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