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

  • A
    $n$
  • B
    $\frac{{n + 1}}{2}$
  • C
    $\frac{{n(n + 1)}}{2}$
  • D
    $\frac{{n(n - 1)}}{2}$

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Similar Questions

$\mathop {\lim }\limits_{x \to 0} f(x)$ શોધો,જ્યાં $f(x) = \begin{cases} \frac{x}{|x|}, & x \neq 0 \\ 0, & x=0 \end{cases}$

જો $\mathop {\lim }\limits_{x \to \infty } {\left( {\frac{{{a^{1/x}} + b}}{c}} \right)^x} = d$ ($d$ એ શૂન્યતર શાંત કિંમત છે),તો $(b + 1) \log_a d$ ની કિંમત શું થાય?

આપેલ લક્ષની કિંમત શોધો: $\mathop {\lim }\limits_{x \to 1} \frac{4x+3}{x-2}$

$\lim _{x \rightarrow \infty} x^3 \left\{\sqrt{x^2+\sqrt{1+x^4}}-x \sqrt{2}\right\} = $

નીચેના વિધાનો ધ્યાનમાં લો:
વિધાન $1$: $\lim _{x \rightarrow 1} \frac{a x^{2}+b x+c}{c x^{2}+b x+a} = 1$ (જ્યાં $a+b+c \neq 0$).
વિધાન $2$: $\lim _{x \rightarrow -2} \frac{\frac{1}{x}+\frac{1}{2}}{x+2} = \frac{1}{4}$.

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