1.

If y = (a^(cos x))/( sqrt(1+ x^(2) )),then (dy)/(dx) =

Answer»

` (a^(cos x ) (( 1+x^(2) )(LOG a)(sin a )(sin x) ))/( (SQRT( 1+ x^(2)))^(3)) `
` (-a^(cos x ) (( 1+x^(2) )(log a)(sin a )(sin x) ))/( (sqrt( 1+ x^(2)))^(3)) `
` (a^(cos x ) (( 1+x^(2) )(log a)(sin a )(sin x) +x))/( (sqrt( 1+ x^(2)))^(3)) `
` (-a^(cos x ) (( 1+x^(2) )(log a)(sin a )(sin x) +x))/( (sqrt( 1+ x^(2)))^(3)) `

Answer :D


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