MCQ
$\mathop {\lim }\limits_{x \to 0} \frac{{{e^{\sin x}} - 1}}{x} = $
- ✓$1$
- B$e$
- C$1/e$
- DNone of these
$ = \mathop {\lim }\limits_{x \to 0} \,\frac{{{e^{\sin x}} - 1}}{{\sin x}} \times \mathop {\lim }\limits_{x \to 0} \,\frac{{\sin x}}{x} = 1 \times 1 = 1$.
Aliter : Apply $L-$ Hospital’s rule,
$\mathop {\lim }\limits_{x \to 0} \,\frac{{{e^{\sin x}} - 1}}{x} = \mathop {\lim }\limits_{x \to 0} \,\frac{{\cos x\,{e^{\sin x}}}}{1} = 1.\,{e^0} = 1.$
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Statement $-1$ : Equation of other roots is $x^2 + cx + ab = 0$
Statement $-2$ : $a + b + c = 0$