જો $\frac{x^2}{a^2} + \frac{y^2}{b^2} = 1$ હોય,તો $\frac{d^2 y}{d x^2}$ શું થાય?

  • A
    $\frac{-b^4}{a}$
  • B
    $\frac{b^4}{a^2}$
  • C
    $\frac{-b^4}{y^3}$
  • D
    $\frac{-b^4}{a^2 y^3}$

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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 $\log _e y=3 \sin ^{-1} x$ હોય,તો $x=\frac{1}{2}$ આગળ $(1-x^2) y^{\prime \prime}-x y^{\prime}$ ની કિંમત શોધો:

જો $y = (\tan^{-1} x)^2$ હોય,તો $(x^2 + 1)^2 \frac{d^2 y}{dx^2} + 2x(x^2 + 1) \frac{dy}{dx} = $

જો $y=a \cos (\sin 2 x)+b \sin (\sin 2 x)$ હોય, તો $y^{\prime \prime}+(2 \tan 2 x) y^{\prime}$ ની કિંમત શોધો.

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