એક વિધેય $f: R \rightarrow R$ એવું છે કે $y f(x+y) + \cos(mxy) = 1 + y f(x)$. જો $m=2$ હોય,તો $f'(x) =$

  • A
    $-2 \sin(2xy)$
  • B
    $4x$
  • C
    $\frac{2 \sin(2xy)}{y}$
  • D
    $2x^2$

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$a^x + \log x \cdot \sin x$ નું વિકલન ગુણાંક શોધો.

જો $f''(x) = x^{1/3}$ હોય,તો નીચેનામાંથી કયું વિધાન સાચું હોઈ શકે?
$I$. $f'(x) = \frac{3}{4}x^{4/3} + 9$ $II$. $f(x) = \frac{9}{28}x^{7/3} - 2$
$III$. $f(x) = \frac{9}{28}x^{7/3} + 6$ $IV$. $f'(x) = \frac{3}{4}x^{4/3} - 4$

$x = 1$ આગળ $y = (1 - x)(2 - x)...(n - x)$ નું વિકલન શું થાય?

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જો $y = t^{4/3} - 3t^{-2/3}$ હોય,તો $\frac{dy}{dt} = $

જો $f(x) = |x^2 - 3x + 2|$ હોય,તો $\frac{df}{dx} = $

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