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Functions — MATHS STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceMATHSFunctions3 Marks
Question
If f(x) = x2, find $\frac{\text{f}(1.1)-\text{f}(1)}{(1.1)-1}$
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Answer

$\text{f(x)}=\text{x}^2$
$\text{f}(1.1)=1.21$
$\text{f}(1)=1$
$\frac{\text{f}(1.1)-\text{f}(1)}{(1.1)-1}=\frac{1.21-1}{1.1-1}$
$=\frac{0.21}{0.1}=2.1$

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