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lim_(x rarr1)(int_(1)^(x)e^(t^(2)))/(x^(2)-1)=

limx11xet2x21= \lim _{x \rightarrow 1} \frac{\int_{1}^{x} e^{t^{2}}}{x^{2}-1}=

Full solution

Q. limx11xet2x21= \lim _{x \rightarrow 1} \frac{\int_{1}^{x} e^{t^{2}}}{x^{2}-1}=
  1. Recognize Indeterminate Form: Recognize that the limit involves an indeterminate form. As xx approaches 11, the numerator approaches the value of the integral from 11 to 11, which is 00 because the limits of integration are the same. The denominator approaches 00 as well because (121)=0(1^2 - 1) = 0. This creates an indeterminate form of 0/00/0.
  2. Apply L'Hôpital's Rule: Apply L'Hôpital's Rule.\newlineSince we have an indeterminate form of 0/00/0, we can apply L'Hôpital's Rule, which states that if the limit as xx approaches aa of f(x)/g(x)f(x)/g(x) is 0/00/0 or ±/±\pm\infty/\pm\infty, then the limit is the same as the limit of the derivatives of the numerator and the denominator, provided that the latter limit exists.
  3. Differentiate Numerator: Differentiate the numerator with respect to xx. The numerator is an integral with a variable upper limit of integration. The derivative of such an integral with respect to its upper limit is simply the integrand evaluated at the upper limit. Therefore, the derivative of the numerator with respect to xx is e(x2)e^{(x^2)}.
  4. Differentiate Denominator: Differentiate the denominator with respect to xx. The denominator is x21x^2 - 1. The derivative of x2x^2 with respect to xx is 2x2x, and the derivative of 1-1 is 00. Therefore, the derivative of the denominator with respect to xx is 2x2x.
  5. Apply Derivatives to Rule: Apply the derivatives to L'Hôpital's Rule.\newlineNow that we have the derivatives, we can apply L'Hôpital's Rule to find the limit:\newlinelimx1ex22x\lim_{x \to 1} \frac{e^{x^2}}{2x}
  6. Evaluate Limit of Derivatives: Evaluate the limit of the derivatives.\newlineAs xx approaches 11, ex2e^{x^2} approaches e12=ee^{1^2} = e, and 2x2x approaches 2(1)=22(1) = 2. Therefore, the limit is e2\frac{e}{2}.

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