मान लीजिए $I = \int_{\pi / 4}^{\pi / 3} \frac{\sin x}{x} dx$. तो

  • A
    $\frac{1}{2} \leq I \leq 1$
  • B
    $4 \leq I \leq 2 \sqrt{30}$
  • C
    $\frac{\sqrt{3}}{8} \leq I \leq \frac{\sqrt{2}}{6}$
  • D
    $1 \leq I \leq \frac{2 \sqrt{3}}{\sqrt{2}}$

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$\int_{0}^{1} \frac{dx}{x + \sqrt{1 - x^2}}$ का मान ज्ञात कीजिए।

$\int_{-1}^1 \frac{(1+\sqrt{|x|-x}) e^x+(\sqrt{|x|-x}) e^{-x}}{e^x+e^{-x}} d x$ का मान किसके बराबर है?

मान लीजिए $f(x) = 7 \tan^8 x + 7 \tan^6 x - 3 \tan^4 x - 3 \tan^2 x$ सभी $x \in \left(-\frac{\pi}{2}, \frac{\pi}{2}\right)$ के लिए है। तो सही व्यंजक है/हैं:
$(A) \int_0^{\pi/4} x f(x) dx = \frac{1}{12}$
$(B) \int_0^{\pi/4} f(x) dx = 0$
$(C) \int_0^{\pi/4} x f(x) dx = \frac{1}{6}$
$(D) \int_0^{\pi/4} f(x) dx = 1$

$\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}} (x^{3} + x \cos x + \tan^{5} x + 1) dx$ का मान क्या है?

यदि $\int_{-\pi / 2}^{\pi / 2} \frac{8 \sqrt{2} \cos x \, dx}{(1+e^{\sin x})(1+\sin ^4 x)} = \alpha \pi + \beta \log _e(3+2 \sqrt{2})$,जहाँ $\alpha, \beta$ पूर्णांक हैं,तो $\alpha^2+\beta^2$ का मान ज्ञात कीजिए।

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