$\lim _{x \rightarrow 0} \frac{\sqrt{1-\cos x^2}}{1-\cos x} = $

  • A
    $\sqrt{2}$
  • B
    $\frac{1}{\sqrt{2}}$
  • C
    $0$
  • D
    $\frac{1}{2}$

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જો $f(x) = \begin{cases} |x|+1, & x < 0 \\ 0, & x = 0 \\ |x|-1, & x > 0 \end{cases}$ હોય,તો $a$ ની કઈ કિંમત(ઓ) માટે $\lim_{x \to a} f(x)$ નું અસ્તિત્વ છે?

$\lim _{n \rightarrow \infty} \frac{n !}{(n+1) !-n !} = $

જો $f(x) = \begin{cases} \frac{\sin(1+[x])}{[x]}, & \text{for } [x] \neq 0 \\ 0, & \text{for } [x] = 0 \end{cases}$ જ્યાં $[x]$ એ મહત્તમ પૂર્ણાંક વિધેય દર્શાવે છે,તો $\lim_{x \rightarrow 0^{-}} f(x)$ ની કિંમત શોધો.

$\lim _{x}$ ${\rightarrow 0} \frac{8}{x^8}\left[1-\cos \left(\frac{x^2}{2}\right)-\cos \left(\frac{x^2}{4}\right)+\cos \left(\frac{x^2}{2}\right) \cdot \cos \left(\frac{x^2}{4}\right)\right]$ ની કિંમત શોધો.

ધારો કે $x_{n}=\left(1-\frac{1}{3}\right)^{2}\left(1-\frac{1}{6}\right)^{2}\left(1-\frac{1}{10}\right)^{2} \ldots \left(1-\frac{1}{\frac{n(n+1)}{2}}\right)^{2}, n \geq 2$ છે. તો, $\lim _{n \rightarrow \infty} x_{n}$ નું મૂલ્ય શોધો.

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