જો $\mathop {\lim }\limits_{x \to 5} \frac{{{x^k} - {5^k}}}{{x - 5}} = 500$ હોય,તો $k$ ની ધન પૂર્ણાંક કિંમત શોધો.

  • A
    $3$
  • B
    $4$
  • C
    $5$
  • D
    $6$

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ધારો કે $f(x)$ એ વિકલનીય વિધેય છે જેથી $f(0)=0$ અને $f^{\prime}(0)=20$ થાય. $x \in \left(0, \frac{\pi}{2}\right]$ માટે,જો $A(x)=2 f(x) \operatorname{cosec} 4 x+4 f(x)\left(\cos ^2 x+1\right)-4 \cos ^2 x$ હોય,તો $\lim _{x \rightarrow 0} A(x)=$

જો $f(x) = \text{Sgn}(\text{Sgn}(\text{Sgn}(x)))$ હોય,તો $\mathop {\lim }\limits_{x \to 0} f(x)$ ની કિંમત શું થાય :-

જો $\mathop {\lim }\limits_{x \to \infty } {\left( {1 + \frac{a}{x} + \frac{b}{{{x^2}}}} \right)^{2x}} = {e^2}$ હોય,તો $a$ અને $b$ ની કિંમતો શોધો.

$\mathop {\lim }\limits_{x \to \infty } \frac{{{{\cot }^{ - 1}}\left( {\sqrt {x + 1} - \sqrt x } \right)}}{{{{\sec }^{ - 1}}\left\{ {{{\left( {\frac{{2x + 1}}{{x - 1}}} \right)}^x}} \right\}}}$ ની કિંમત શોધો.

$\mathop {\lim }\limits_{x \to 1} \frac{{x + {x^2} + ...... + {x^n} - n}}{{x - 1}}$ ની કિંમત શોધો.

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