જો $\int_{0}^{a} \frac{dx}{4 + x^2} = \frac{\pi}{8}$ હોય,તો $a$ ની કિંમત શોધો.

  • A
    $1$
  • B
    $2$
  • C
    $3$
  • D
    $4$

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ટ્રેપેઝોઇડલ નિયમનો ઉપયોગ કરીને $h=1$ સાથે $\int_0^4 \frac{d x}{1+x^2}$ સંકલનનું મૂલ્ય મેળવતા શું મળે?

જો $f(y) = e^y$,$g(y) = y$ જ્યાં $y > 0$ અને $F(t) = \int_{0}^{t} f(t - y) g(y) dy$ હોય,તો:

ધારો કે $f(x) = 2 + |x| - |x - 1| + |x + 1|$,$x \in R$. ધ્યાનમાં લો:
$(S1): f^{\prime}\left(-\frac{3}{2}\right) + f^{\prime}\left(-\frac{1}{2}\right) + f^{\prime}\left(\frac{1}{2}\right) + f^{\prime}\left(\frac{3}{2}\right) = 4$
$(S2): \int_{-2}^{2} f(x) dx = 12$
તો,

જો $g(x) = \int_{0}^{x} \cos 4t \, dt$ હોય,તો $g(x + \pi) = $

$\int_{\pi /6}^{\pi /4} \text{cosec} \, 2x \, dx = $

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