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28. Differentiation
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Q43 of 116 Page 892

, prove that

Let y = , u =, v = , z=


Formula :


According to quotient rule of differentiation


If z =






According to the chain rule of differentiation



=


=


=


(Muliplying and dividing by 1-x )


=


=


Therefore



HENCE PROVED


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Questions · 116
28. Differentiation
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