MCQ
$\int_0^a \sqrt{\frac{x}{a-x}} d x=$
- ✓$\left(\frac{\pi}{2}\right) a$
- B2πa
- C$\left(\frac{\pi}{4}\right) a$
- Dπa
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f(x) = `{(- 2 sin x "," - pi ≤ x ≤ (-pi)/2),(alpha sin x + beta"," - pi/2 < x < pi/2),(cos x "," pi/2 ≤ x ≤ pi):}` then α and β equals