सीमा का मूल्यांकन करें: $\lim _{x \rightarrow 0} \frac{4[\sin (2022 x)-\sin (2020 x)]}{x[\cos (2022 x)+2 \cos (2021 x)+\cos (2020 x)]}$

  • A
    $1$
  • B
    $2$
  • C
    $2020$
  • D
    $2021$

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$\lim _{t}$ ${\rightarrow 0}\left(1^{\frac{1}{\sin ^2 t}}+2^{\frac{1}{\sin ^2 t}}+\ldots +n^{\frac{1}{\sin ^2 t}}\right)^{\sin ^2 t}$ का मान $.......$ है।

दिए गए सीमा (limit) का मूल्यांकन करें: $\mathop {\lim }\limits_{x \to 0} \frac{\sin ax}{\sin bx}$,जहाँ $a, b \neq 0$.

दिए गए सीमा (limit) का मूल्यांकन करें: $\mathop {\lim }\limits_{x \to 0} \frac{\sin ax + bx}{ax + \sin bx}$,जहाँ $a, b, a+b \neq 0$.

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