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Definite Integration question

2024 · 27 Jan · Shift 2 · Q54
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  5. /2024 · 27 Jan · Shift 2 · Q54

Definite Integration question

2024 · 27 Jan · Shift 2 · Q54

JEE MainMathematicsDefinite IntegrationNumerical+4 / −1
Let f(x)=∫0xg(t)log⁡e(1−t1+t)dtf(x)=\int\limits_0^x g(t) \log _{\mathrm{e}}\left(\frac{1-\mathrm{t}}{1+\mathrm{t}}\right) \mathrm{dt}f(x)=0∫x​g(t)loge​(1+t1−t​)dt, where ggg is a continuous odd function. If ∫−π/2π/2(f(x)+x2cos⁡x1+ex)dx=(πα)2−α\int_{-\pi / 2}^{\pi / 2}\left(f(x)+\frac{x^2 \cos x}{1+\mathrm{e}^x}\right) \mathrm{d} x=\left(\frac{\pi}{\alpha}\right)^2-\alpha∫−π/2π/2​(f(x)+1+exx2cosx​)dx=(απ​)2−α, then α\alphaα is equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
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