Q12 of 168 Page 30

Write the derivation of f(x) = 3|2 + x| at x = –3.

As we need to differentiate f(x) = 3|2+x|


We know the property of a mod function that



∴


Hence,



As


∴


Clearly form the above equation we can say that,


Value of derivative at x = –3 is –3 i.e. f’(–3) = –3


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