જો $f(x) = \frac{1}{\sqrt{x^2 + a^2} + \sqrt{x^2 + b^2}}$ હોય,તો $f'(x)$ ની કિંમત શું થાય?

  • A
    $\frac{x}{a^2 - b^2} \left[ \frac{1}{\sqrt{x^2 + a^2}} - \frac{1}{\sqrt{x^2 + b^2}} \right]$
  • B
    $\frac{x}{a^2 + b^2} \left[ \frac{1}{\sqrt{x^2 + a^2}} - \frac{2}{\sqrt{x^2 + b^2}} \right]$
  • C
    $\frac{x}{a^2 - b^2} \left[ \frac{1}{\sqrt{x^2 + a^2}} + \frac{1}{\sqrt{x^2 + b^2}} \right]$
  • D
    $(a^2 + b^2) \left[ \frac{1}{\sqrt{x^2 + a^2}} - \frac{2}{\sqrt{x^2 + b^2}} \right]$

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$\frac{d}{dx} \left[ \left( \frac{\tan^2 2x - \tan^2 x}{1 - \tan^2 2x \tan^2 x} \right) \cot 3x \right] =$

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જો $y = \cos (\sin {x^2}),$ હોય,તો $x = \sqrt {\frac{\pi }{2}} $ આગળ $\frac{dy}{dx} = $

$x = 0$ અને $x = 3$ આગળ $f(x) = 3$ નું વિકલિત શોધો.

${x^3}$ ની સાપેક્ષમાં ${x^6}$ નો વિકલન સહગુણક શોધો.

ધારો કે $f(x)$ એક બહુપદી વિધેય છે જેથી $f(x)+f^{\prime}(x)+f^{\prime \prime}(x)=x^{5}+64$. તો,$\lim _{x \rightarrow 1} \frac{f(x)}{x-1}$ ની કિંમત શોધો.

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