{\frac{{\sqrt {2 + \cos \,x} - 1}}{{\left( {\pi - {x^2}} \right)}},}&{x \ne \pi } \\
{k\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,,}&{x = \pi }
\end{array}} \right.$ એ $x\, =\pi $ આગળ સતત હોય તો $k$ મેળવો.
- A$0$
- B$\frac{1}{2}$
- C$2$
- D$0.25$
Continuos at $x = \pi $
$\therefore L.H.L = R.H.L = f\left( \pi \right)$
Let $\left( {\pi - x} \right) = \theta ,\theta \to 0$ when $x \to \pi $
$\therefore \mathop {\lim }\limits_{\theta \to 0} \frac{{\sqrt {2 + \cos \theta - 1} }}{{{\theta ^2}}}$
$ = \mathop {\lim }\limits_{\theta \to 0} \frac{{\left( {2 + \cos \theta } \right) - 1}}{{{\theta ^2}}} \times \frac{1}{{\sqrt {2 + \cos \theta } + 1}}$
$ = \mathop {\lim }\limits_{\theta \to 0} \frac{{1 - \cos \theta }}{{{\theta ^2}}}.\frac{1}{2}\,\,$ ($\because $ $\cos 0 = 1$)
$ = \mathop {\lim }\limits_{\theta \to 0} \frac{{2{{\sin }^2}\theta /2}}{{{\theta ^2}}}$
$ = \frac{2}{2}\mathop {\lim }\limits_{\theta \to 0} \frac{{{{\sin }^2}\theta /2}}{{\frac{{{\theta ^2}}}{4}.4}} = \frac{1}{4}$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$f(x) \rightarrow \frac{\lambda\left|x^{2}-5 x+6\right|}{\mu\left(5 x-x^{2}-6\right)}, x<2$
$\quad\quad\quad\quad e^{\frac{\tan (x-2)}{x-[x]}}, \quad x>2$
$\quad\quad\quad\quad \mu \quad\quad\quad\quad x=2$
કે જ્યાં $[x]$ એ મહતમ પૃણાંક વિધેય છે. જો $f$ એ $x=2$ આગળ સતત હોય તો $\lambda+\mu$ ની કિમંત મેળવો.