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Question

If f(x)=92/x2,x0 is continuous at x=0, then the value of f(0) is

A
1
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B
1
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C
9
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D
0
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Solution

The correct option is D 0
Given : f(x)=92/x2,x0
At x=0,
R.H.L.=limh0f(0+h)=limh092/h2=0
(h0,2h2)
Since f(x) is continuous at x=0
R.H.L.=f(0)=0
f(0)=0

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