જો $x \cos (k+y)=\cos y$ હોય,તો $y=\frac{\pi}{2}$ આગળ $\frac{dy}{dx}$ ની કિંમત શોધો.

  • A
    $\sin k$
  • B
    $\cos k$
  • C
    $1$
  • D
    $0$

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જો ${x^m}{y^n} = {(x + y)^{m + n}}$ હોય,તો ${\left. {\frac{dy}{dx}} \right|_{x = 1, y = 2}}$ ની કિંમત કેટલી થાય?

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સમીકરણ $\sin^{2} y + \cos(xy) = \pi$ માટે $\frac{dx}{dy}$ શોધો.

જો $x^2+y^2=t+\frac{1}{t}$ અને $x^4+y^4=t^2+\frac{1}{t^2}$ હોય,તો $\frac{dy}{dx}$ ની કિંમત શોધો.

જો $2^x+2^y=2^{x+y}$ હોય,તો $\frac{d y}{d x}=$

જો $x^y=y^x$ હોય,તો $x(x-y \log x) \frac{d y}{d x}$ ની કિંમત શું થાય?

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