$\mathop {\lim }\limits_{x \to 0} \frac{{\cos ax - \cos bx}}{{{x^2}}} = $

  • A
    $\frac{{{a^2} - {b^2}}}{2}$
  • B
    $\frac{{{b^2} - {a^2}}}{2}$
  • C
    ${a^2} - {b^2}$
  • D
    ${b^2} - {a^2}$

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$\lim _{x \rightarrow 1} \frac{a b^x-a^x b}{x^2-1} = $

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यदि $f(4) = g(4) = 2$,$f'(4) = 9$,और $g'(4) = 6$ है,तो $\mathop {\text{Limit}}\limits_{x \to 4} \frac{\sqrt{f(x)} - \sqrt{g(x)}}{\sqrt{x} - 2}$ का मान ज्ञात कीजिए:

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यदि $f(0) = 2$ है,तो $\mathop {\lim }\limits_{x \to 0} \frac{{\int\limits_0^x {\left( {tf(x) + xf(t)} \right)dt} }}{{{x^2}}}$ का मान ज्ञात कीजिए।

सीमा का मूल्यांकन करें: $\lim _{x \rightarrow 0} \frac{e^x-e^{\sin x}}{2(x-\sin x)}$

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