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Question

Find the Derivation of f(x)=x2.at x=0


A

0

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B

1

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C

-1

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D

2

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Solution

The correct option is A

0


Clearly f(x) is continuous at x2 and x write no sharp edges at x=0

limh0=f(x0+h)f(x)h=limh0(x+h)2x2h

limh0x2+2xh+h2x2h

limh0=h(2x+h)h=limh0(2x+h)=2x

at x0=limh0(2x+h)=0

Derivative of x2 at 0=0


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