જો $x^y=y^{\sin x}(\tan x)^{\cos x}$ હોય,તો $\left(\log x-\frac{\sin x}{y}\right) \frac{d y}{d x}=$

  • A
    $\cos x \log y-\sin x \log (\tan x)+\operatorname{cosec} x-\frac{y}{x}$
  • B
    $\cos x \log y-\sin x \log (\tan x)+\cos ^2 x \operatorname{cosec} x-\frac{y}{x}$
  • C
    $\frac{\cos x}{x}-\sin ^2 x \sec x$
  • D
    $\cos x-x \sin ^2 x \sec x$

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$x$ ની સાપેક્ષમાં વિધેય $(\log x)^{x}+x^{\log x}$ નું વિકલન કરો.

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જો $f(\theta) = \cos \theta_1 \cdot \cos \theta_2 \cdot \cos \theta_3 \cdots \cos \theta_n$ હોય,તો $\tan \theta_1 + \tan \theta_2 + \tan \theta_3 + \cdots + \tan \theta_n =$

જો $y = {\left( {1 + \frac{1}{x}} \right)^x}$ હોય,તો $\frac{dy}{dx} = $

જો $y=(x+3)^2 \cdot(x+4)^3 \cdot(x+5)^4$ હોય,તો $x$ ની સાપેક્ષે $y$ નું પ્રથમ ક્રમનું વિકલન . . . . . . છે.

જો $y = [(x+1)(2x+1)(3x+1) \ldots (nx+1)]^{\frac{3}{2}}$ હોય,તો $x=0$ આગળ $\frac{dy}{dx}$ ની કિંમત શોધો.

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