ધારો કે $f(x) = \frac{\sin x + \cos x - \sqrt{2}}{\sin x - \cos x}$,$x \in [0, \pi] - \{\frac{\pi}{4}\}$. તો $f(\frac{7\pi}{12}) f''(\frac{7\pi}{12})$ ની કિંમત શોધો.

  • A
    $\frac{-2}{3}$
  • B
    $\frac{2}{9}$
  • C
    $-\frac{1}{3\sqrt{3}}$
  • D
    $\frac{-2}{3\sqrt{3}}$

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વિધેય $f(x) = x^{2} + 3x + 2$ નું દ્વિતીય વિકલિત શોધો.

જો $y = \sin(\sin x)$ અને $y'' + f(x) \cdot y' + g(x) \cdot y = 0$ હોય,તો $f(x) \cdot g(x) =$

જો $f(x) = \sin x + \cos x$ હોય, તો $f\left(\frac{\pi}{4}\right) f^{(iv)}\left(\frac{\pi}{4}\right)$ ની કિંમત શોધો.

જો $y = e^{a \cos^{-1} x}$,$-1 \le x \le 1$ હોય,તો સાબિત કરો કે $(1-x^{2}) \frac{d^{2} y}{d x^{2}} - x \frac{d y}{d x} - a^{2} y = 0$.

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જો $y = {\left[ {x + \sqrt {{x^2} - 1} } \right]^{15}} + {\left[ {x - \sqrt {{x^2} - 1} } \right]^{15}}$ હોય,તો $\left( {{x^2} - 1} \right)\frac{{{d^2}y}}{{d{x^2}}} + x\frac{{dy}}{{dx}}$ ની કિંમત શોધો.

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