જો $a>0$ અને $f(x)=\left(\frac{a+x}{1+x}\right)^{a+1+2x}$ હોય,તો $f^{\prime}(0)=$

જો $y = \sin x \cdot \sin 2x \cdot \sin 3x \cdot \ldots \cdot \sin nx$ હોય,તો $y^{\prime}$ શું થાય?

$\text{જો } \frac{d}{dx} \left( \frac{x^2+1}{(x^2+5)(x^2+9)} \right) = \frac{2x(x^2+1)}{(x^2+5)(x^2+9)} \left[ \frac{1}{f(x)} - \frac{1}{g(x)} - \frac{1}{h(x)} \right] \text{ હોય, તો } 2h(x) - f(x) - g(x) = $

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

જો $y = e^{4x} \left( \frac{x-4}{x+3} \right)^{\frac{3}{4}}$ હોય,તો $\frac{dy}{dx} = $

વિધાન $(A)$: $\frac{d}{d x}\left(\frac{x^2 \sin x}{\log x}\right)=\frac{x^2 \sin x}{\log x} \left(\cot x+\frac{2}{x}-\frac{1}{x \log x}\right)$
કારણ $(R)$: $\frac{d}{d x}\left(\frac{u v}{w}\right)=\frac{u v}{w}\left[\frac{u^{\prime}}{u}+\frac{v^{\prime}}{v}-\frac{w^{\prime}}{w}\right]$