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The Value of Lim X → ∞ √ 1 + X 4 + ( 1 + X 2 ) X 2 is - Mathematics

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Question

The value of \[\lim_{x \to \infty} \frac{\sqrt{1 + x^4} + \left( 1 + x^2 \right)}{x^2}\]  is

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  • −1 

  •  1 

  • none of these 

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Solution

 2 

\[\lim_{x \to \infty} \frac{\sqrt{1 + x^4} + \left( 1 + x^2 \right)}{x^2}\]
\[ = \lim_{x \to \infty} \sqrt{\frac{1}{x^4} + 1} + \frac{1}{x^2} + 1\]
\[ = 2\] 

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Chapter 29: Limits - Exercise 29.13 [Page 79]

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RD Sharma Mathematics [English] Class 11
Chapter 29 Limits
Exercise 29.13 | Q 19 | Page 79

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