lim _{x rightarrow 0} frac{48}{x^4} int _{0}^ | vedclass

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(D) Given limit is $L = \lim _{x \rightarrow 0} \frac{48}{x^4} \int _{0}^{x} \frac{t^3}{t^6+1} dt$. This is a $\frac{0}{0}$ indeterminate form. Applyi

Vedclass · Accepted Answer

$12$

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(D) Given limit is $L = \lim _{x ightarrow 0} \frac{48}{x^4} \int _{0}^{x} \frac{t^3}{t^6+1} dt$. This is a $\frac{0}{0}$ indeterminate form. Applying $L'	ext{Hospital's Rule}$,we differentiate the numerator and denominator with respect to $x$: $L = 48 \lim _{x ightarrow 0} \frac{\frac{d}{dx} \int _{0}^{x} \frac{t^3}{t^6+1} dt}{\frac{d}{dx} (x^4)}$. Using the $	ext{Leibniz Integral Rule}$,$\frac{d}{dx} \int _{0}^{x} f(t) dt = f(x)$: $L = 48 \lim _{x ightarrow 0} \frac{\frac{x^3}{x^6+1}}{4x^3}$. Simplifying the expression: $L = 48 \lim _{x ightarrow 0} \frac{x^3}{4x^3(x^6+1)} = 48 \lim _{x ightarrow 0} \frac{1}{4(x^6+1)}$. Evaluating the limit as $x ightarrow 0$: $L = \frac{48}{4(0^6+1)} = \frac{48}{4} = 12$.

$\lim _{x \rightarrow 0} \frac{48}{x^4} \int _{0}^{x} \frac{t^3}{t^6+1} dt$ is equal to $.......$.

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