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JEE MATHEMATICS MCQ: DEFINITE INTEGRATION

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Application +4 | -1
∫0π/2  sin⁡2/3  xsin⁡2/3  x  +  cos⁡2/3  x  dx\int \nolimits_0^{\pi /2} \,\,\frac{{{{\sin }^{2/3}}\,\,x}}{{{{\sin }^{2/3}}\,\,x\,\, + \,\,{{\cos }^{2/3}}\,\,x}}\,\,dx is equal to
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Correct option: A
π4\frac{\mathrm{\pi }}{4}
Option A (π4\frac{\mathrm{\pi }}{4}) is correct because using the property of definite integrals, ∫0af(x)dx=∫0af(a−x)dx\int_0^a f(x) dx = \int_0^a f(a-x) dx, simplifies the integral.

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