Q7 of 116 Page 875

Find the derivation of each of the following from the first principle:


Let

We need to find the derivative of f(x) i.e. f’(x)


We know that,


…(i)




Putting values in (i), we get




[Add and subtract x in denominator]



= (-5)x-5-1


= -5x-6



Hence,


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