Ajit Mishra’s Online Classroom: Differentiability Theorem

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Ajit Mishra’s Online Classroom: Differentiability Theorem.

Theorem :-  A function   f    is differentiable  at     x=a     if and only if there exists a number   l    .
such that ;

    f(a+h)-f(a)=lh+hn

Where     n    denotes a quantity which tends to    0     as   h–>0     .

This theorem is known as Differentiability Theorem .

To see the proof of this theorem please click on the given Image or Link .

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