lim _{x rightarrow infty}left(frac{6 x^2-cos | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) We evaluate the limit as $x \rightarrow \infty$: $\lim _{x \rightarrow \infty}\left(\frac{6 x^2-\cos 3 x}{x^2+5}-\frac{5 x^3+3}{\sqrt{x^6+2}}\righ

Vedclass · Accepted Answer

$1$

Vedclass · Answer

(D) We evaluate the limit as $x \rightarrow \infty$: $\lim _{x \rightarrow \infty}\left(\frac{6 x^2-\cos 3 x}{x^2+5}-\frac{5 x^3+3}{\sqrt{x^6+2}}\right)$ Divide the numerator and denominator of the first term by $x^2$: $\lim _{x \rightarrow \infty} \frac{6 - \frac{\cos 3x}{x^2}}{1 + \frac{5}{x^2}} = \frac{6 - 0}{1 + 0} = 6$ For the second term,since $x \rightarrow \infty$,$x > 0$,so $\sqrt{x^6} = x^3$: $\lim _{x \rightarrow \infty} \frac{5x^3 + 3}{\sqrt{x^6+2}} = \lim _{x \rightarrow \infty} \frac{5 + \frac{3}{x^3}}{\sqrt{1 + \frac{2}{x^6}}} = \frac{5 + 0}{\sqrt{1 + 0}} = 5$ Thus,the limit is $6 - 5 = 1$.

$\lim _{x \rightarrow \infty}\left(\frac{6 x^2-\cos 3 x}{x^2+5}-\frac{5 x^3+3}{\sqrt{x^6+2}}\right) = $

Similar Questions

$\lim _{x \rightarrow \infty}\left(1+\frac{2}{x}\right)^{3 x}=$

$\mathop {\lim }\limits_{n \to \infty } {\left( {\frac{{{n^2} - n + 1}}{{{n^2} - n - 1}}} \right)^{n(n - 1)}} = $

If $f(x) = \begin{cases} x & \text{if } x < 0 \\ 1 & \text{if } x = 0 \\ x^2 & \text{if } x > 0 \end{cases}$,then $\mathop {\lim }\limits_{x \to 0} f(x) = $

$\mathop {\lim }\limits_{x \to 0} \frac{x}{|x| + {x^2}} = $

$\mathop {\lim }\limits_{x \to \pi /2} \frac{{{a^{\cot x}} - {a^{\cos x}}}}{{\cot x - \cos x}} = $

Vedclass Test Series

Exam Paper Generator

Online Exam Module