int_{0}^{frac{pi}{2}} frac{sqrt[3]{sec x}}{sq | vedclass

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Question

(B) माना $I = \int_{0}^{\frac{\pi}{2}} \frac{(\sec x)^{1/3}}{(\sec x)^{1/3} + (\operatorname{cosec} x)^{1/3}} dx \quad ...(1)$ गुणधर्म $\int_{0}^{a} f

Vedclass · Accepted Answer

$\frac{\pi}{4}$

Vedclass · Answer

(B) माना $I = \int_{0}^{\frac{\pi}{2}} \frac{(\sec x)^{1/3}}{(\sec x)^{1/3} + (\operatorname{cosec} x)^{1/3}} dx \quad ...(1)$ गुणधर्म $\int_{0}^{a} f(x) dx = \int_{0}^{a} f(a-x) dx$ का उपयोग करने पर: $I = \int_{0}^{\frac{\pi}{2}} \frac{(\sec(\frac{\pi}{2}-x))^{1/3}}{(\sec(\frac{\pi}{2}-x))^{1/3} + (\operatorname{cosec}(\frac{\pi}{2}-x))^{1/3}} dx$ चूँकि $\sec(\frac{\pi}{2}-x) = \operatorname{cosec} x$ और $\operatorname{cosec}(\frac{\pi}{2}-x) = \sec x$ है,इसलिए: $I = \int_{0}^{\frac{\pi}{2}} \frac{(\operatorname{cosec} x)^{1/3}}{(\operatorname{cosec} x)^{1/3} + (\sec x)^{1/3}} dx \quad ...(2)$ समीकरण $(1)$ और $(2)$ को जोड़ने पर: $2I = \int_{0}^{\frac{\pi}{2}} \frac{(\sec x)^{1/3} + (\operatorname{cosec} x)^{1/3}}{(\sec x)^{1/3} + (\operatorname{cosec} x)^{1/3}} dx$ $2I = \int_{0}^{\frac{\pi}{2}} 1 dx = [x]_{0}^{\frac{\pi}{2}} = \frac{\pi}{2}$ अतः,$I = \frac{\pi}{4}$.

$\int_{0}^{\frac{\pi}{2}} \frac{\sqrt[3]{\sec x}}{\sqrt[3]{\sec x}+\sqrt[3]{\operatorname{cosec} x}} d x=$

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