प्रथम सिद्धांत का उपयोग करके $f(x) = x \sin x$ का अवकलज ज्ञात कीजिए।

  • A
    $x \cos x + \sin x$
  • B
    $x \cos x - \sin x$
  • C
    $\sin x - x \cos x$
  • D
    $-x \cos x - \sin x$

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$\mathop {\lim }\limits_{h \to 0} \frac{{\sqrt {x + h} - \sqrt x }}{h} = $

प्रथम सिद्धांत का उपयोग करके फलन $f(x) = \frac{1}{x^{2}}$ का अवकलज ज्ञात कीजिए।

फलन $\sec x$ का अवकलज ज्ञात कीजिए:

यदि $f(a) = 2, f'(a) = 1, g(a) = -1, g'(a) = 2$ है,तो $\lim_{x \to a} \frac{g(x)f(a) - g(a)f(x)}{x - a} = $

मान लीजिए $f(x) = 3x^{10} - 7x^{8} + 5x^{6} - 21x^{3} + 3x^{2} - 7$. तो $\lim_{h \rightarrow 0} \frac{f(1-h) - f(1)}{h^{3} + 3h}$ है:

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