$x e^x$ નું $n^{th}$ વિકલન ક્યારે શૂન્ય થાય છે?

  • A
    $x = 0$
  • B
    $x = -1$
  • C
    $x = -n$
  • D
    $x = n$

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વિધેય $y = \tan^{-1} x$ માટે,$(1 + x^2) y_2$ ની કિંમત . . . . . . છે.

જો $x = \log t, t > 0$ અને $y = \frac{1}{t}$ હોય,તો $\frac{d^2 y}{d x^2} =$

જો $y = \log_e(\log_e x)$ હોય,જ્યાં $x > 1$,તો $\frac{d^2 y}{dx^2} = $ . . . . . . .

જો $y = \log(\cosh x)$ હોય,તો $\frac{d^2 y}{d x^2} = $

જો $e^y(x+1)=1$ હોય,તો $\frac{d^2 y}{d x^2} = $ . . . . . .

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