નિશ્ચિત સંકલન $\int_{2}^{3} \frac{d x}{x^{2}-1}$ ની કિંમત શોધો.

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ધારો કે $I = \int_{2}^{3} \frac{d x}{x^{2}-1}$.
પ્રમાણિત સંકલન સૂત્ર $\int \frac{d x}{x^{2}-a^{2}} = \frac{1}{2a} \log \left| \frac{x-a}{x+a} \right| + C$ નો ઉપયોગ કરતા,જ્યાં $a = 1$ છે,આપણને મળે છે:
$F(x) = \int \frac{d x}{x^{2}-1} = \frac{1}{2} \log \left| \frac{x-1}{x+1} \right|$.
કલનશાસ્ત્રના બીજા મૂળભૂત પ્રમેય મુજબ,$I = F(3) - F(2)$.
$I = \frac{1}{2} \left[ \log \left| \frac{3-1}{3+1} \right| - \log \left| \frac{2-1}{2+1} \right| \right]$.
$I = \frac{1}{2} \left[ \log \left| \frac{2}{4} \right| - \log \left| \frac{1}{3} \right| \right]$.
$I = \frac{1}{2} \left[ \log \left( \frac{1}{2} \right) - \log \left( \frac{1}{3} \right) \right]$.
ગુણધર્મ $\log a - \log b = \log \left( \frac{a}{b} \right)$ નો ઉપયોગ કરતા:
$I = \frac{1}{2} \log \left( \frac{1/2}{1/3} \right) = \frac{1}{2} \log \left( \frac{3}{2} \right)$.

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