$\int_0^{\pi / 2} \sqrt{\sin \theta} \cos ^3 \theta d \theta$ ની કિંમત શોધો.

  • A
    $\frac{8}{23}$
  • B
    $\frac{7}{23}$
  • C
    $\frac{8}{21}$
  • D
    $\frac{7}{21}$

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$\int_{0}^{1} \left( \prod_{r=1}^{n} (x+r) \right) \left( \sum_{k=1}^{n} \frac{1}{x+k} \right) dx$ નું મૂલ્ય શું થાય?

જો $I$ એ $I_1=\int_0^1 e^{-x} \cos ^2 x \, dx, I_2=\int_0^1 e^{-x^2} \cos ^2 x \, dx, I_3=\int_0^1 e^{-x^2} \, dx, I_4=\int_0^1 e^{-x^2 / 2} \, dx$ માંથી સૌથી મોટું હોય, તો

$\int_0^{\pi / 4} \tan ^2(x) \, dx =$

જો $\int_0^{\frac{\pi}{3}} \cos^4 x \, dx = a\pi + b\sqrt{3}$ હોય,જ્યાં $a$ અને $b$ સંમેય સંખ્યાઓ છે,તો $9a + 8b$ ની કિંમત શોધો:

જો $f(x)=|x-1|+|x-2|+|x-3|, \forall x \in[1,4]$ હોય,તો $\int_1^4 f(x) dx=$

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