જો $\lim_{x \rightarrow 1} \frac{x+x^{2}+x^{3}+\ldots+x^{n}-n}{x-1}=820, (n \in N)$ હોય,તો $n$ ની કિંમત શોધો.

  • A
    $35$
  • B
    $45$
  • C
    $40$
  • D
    $50$

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જો $f(x) = \frac{ax + b}{x + 1}$,$\lim_{x \rightarrow \infty} f(x) = 1$ અને $\lim_{x \rightarrow 0} f(x) = 2$ હોય,તો $f(-2)$ ની કિંમત શોધો.

$\lim _{x}$ ${\rightarrow -a} \frac{x^7+a^7}{x+a} = 7$ $\Rightarrow a = ?$

જો $\lim _{x \rightarrow 1} \frac{x^2-ax+b}{x-1}=7$ હોય,તો $a+b$ ની કિંમત શોધો.

જો $f: R \to [0, \infty)$ એવું હોય કે જેથી $\lim_{x \to 5} f(x)$ અસ્તિત્વ ધરાવે છે અને $\lim_{x \to 5} \frac{(f(x))^2 - 9}{\sqrt{|x - 5|}} = 0$ હોય,તો $\lim_{x \to 5} f(x)$ ની કિંમત શોધો:

જો $\mathop {\lim }\limits_{x \to \infty } \left[ {\frac{{{x^3} + 1}}{{{x^2} + 1}} - (ax + b)} \right] = 2$ હોય,તો

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