જો $\frac{d^n y}{d x^n}=y_n$ અને $y=e^{\sqrt{x}}+e^{-\sqrt{x}}$ હોય,તો $4 x y_2+2 y_1=$

  • A
    $-y$
  • B
    $y$
  • C
    $2 y$
  • D
    $-2 y$

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$y=7 \sin x+5 \cos x$ માટે,જો $\frac{d^2 y}{d x^2}-m y=0$ હોય,તો $m=$ . . . . . .

જો $x^2y + y^3 = 2$ હોય,તો બિંદુ $(1, 1)$ આગળ $\frac{d^2y}{dx^2}$ ની કિંમત શોધો:

જો $(a+b x) e^{\frac{y}{x}}=x$ હોય, તો $\frac{d^2 y}{d x^2}=$

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