JEE MATHEMATICS MCQ: LIMITS

1 Easy

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Analyzing +4 | -1

The value of

\lim \limits_{{x \rightarrow \infty}} \frac{\cot ^{-1}\left(x^{-a} \log _a x\right)}{\sec ^{-1}\left(a^x \log _x a\right)}(a>1)

is equal to

View answer and explanation

Correct option: A

Option A (1) is correct because as x approaches infinity, both the numerator and denominator approach

\frac{\pi}{2}

, resulting in a limit of 1.

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\lim \limits_{{x \rightarrow 0}}\left(\frac{1}{x^2}-\operatorname{cosec}^2 x\right)

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\lim\limits_{h \to 0} 2\left\{ {\frac{{\sqrt 3 \sin \left( {\frac{\pi }{6} + h} \right) - \cos \left( {\frac{\pi }{6} + h} \right)}}{{\sqrt 3 h\left( {\sqrt 3 \cos \,h - \sin \,h} \right)}}} \right\}

\lim \limits_{{x \rightarrow \infty}} x\left(e^{1 / x}-1\right)

f(x)=\frac{(x+1)^7 \sqrt{1+x^2}}{\left(x^2-x+1\right)^6}

f^{\prime}(0)

\lim\limits_{n \to \infty } {\left( {1 + \sin \frac{a}{n}} \right)^n}