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Question

Let f(x)=3x107x8+5x621x3+3x27. The value of limh0f(1h)f(1)h3+3h is equal to

A
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D
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Solution

The correct option is D
limh0f(1h)f(1)h(h2+3)=limh0f(1h)f(1)(1h)1×1(h2+3)=f(1)×13=13{3056+3063+6}=533

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