Q. 53.5( 15 Votes )

<span lang="EN-US

Answer :

(i)


=


Formulae:


= n


- cosec2x


ax = logn(a)×ax


Differentiating with respect to x,



= 4.3x3-1 + 3.logn(2).2x + 6×- + 5 ×- cosec2x


= 12x2 + 3.logn(2).2x -3 -5 cosec2x


(ii)


=


= n


ax = logn(a)×ax


Differentiating with respect to x,



=


=


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