જો ${x^y} = {y^x}$ હોય,તો $\frac{dy}{dx} = $

  • A
    $\frac{y(x\log_e y + y)}{x(y\log_e x + x)}$
  • B
    $\frac{y(y - x\log_e y)}{x(x - y\log_e x)}$
  • C
    $\frac{x(x\log_e y - y)}{y(y\log_e x - x)}$
  • D
    $\frac{x(x\log_e y + y)}{y(y\log_e x + x)}$

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જો $y^{x}+x^{y}+x^{x}=a^{b}$ હોય,તો $\frac{dy}{dx}$ શોધો.

જો $\log _{10}\left(\frac{x^{3}-y^{3}}{x^{3}+y^{3}}\right)=2$ હોય,તો $\frac{dx}{dy} = $

જો $x^3+y^3=3axy$ હોય,તો $\left(\frac{3a}{2}, \frac{3a}{2}\right)$ બિંદુએ $3ay^{\prime \prime}+40$ ની કિંમત શોધો.

જો $a f(x)+b f\left(\frac{1}{x}\right)=x+1$,અને $\frac{d}{d x}\left(x^2 f(x)\right)=2 x^2+2 x+\frac{1}{3}$ હોય,તો $a-b=$

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