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anonymous
 one year ago
prove that
cos A/(1sin A) = (1sin A)/cos A
anonymous
 one year ago
prove that cos A/(1sin A) = (1sin A)/cos A

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Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0multiply top and bottom with the conjugate of the denominator(left side)

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0what is the conjugate of 1sin a ?

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.0here is an example the conjugate of ab is a+b change the sign in the middle term of two terms

Nnesha
 one year ago
Best ResponseYou've already chosen the best response.01st) multiply top and bottom with the conjugate of the denominator 2nd) apply the foil method for the denominator 3rd) use the identity sin^2x +cos^2 x=1