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?Find the limit or show that it does not exist.\(\lim _{u \rightarrow-\infty}\)Equation
Chapter 2, Problem 22(choose chapter or problem)
Find the limit or show that it does not exist.
\(\lim _{u \rightarrow-\infty} \frac{\left(u^{2}+1\right)\left(2 u^{2}-1\right)}{\left(u^{2}+2\right)^{2}}\)
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QUESTION:
Find the limit or show that it does not exist.
\(\lim _{u \rightarrow-\infty} \frac{\left(u^{2}+1\right)\left(2 u^{2}-1\right)}{\left(u^{2}+2\right)^{2}}\)
ANSWER:Step 1 of 2
The given function to find the limit is,
\(\lim _{u \rightarrow-\infty} \frac{\left(u^{2}+1\right)\left(2 u^{2}-1\right)}{\left(u^{2}+2\right)^{2}}\)
Solving the above we get,
\(\begin{aligned} \lim _{u \rightarrow \infty} \frac{\left(u^{2}+1\right)\left(2 u^{2}-1\right)}{\left(u^{2}+2\right)^{2}} & =\lim _{u \rightarrow \infty} \frac{\left(u^{2}+1\right)\left(2 u^{2}-1\right)}{u^{4}+2 u^{2}+4} \\ & =\lim _{u \rightarrow \infty} \frac{u^{2}\left(1+\frac{1}{u^{2}}\right) u^{2}\left(2-\frac{1}{u^{2}}\right)}{u^{4}\left(1+\frac{2}{u^{2}}+\frac{4}{u^{2}}\right)} \end{aligned}\)
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Review this written solution for 1066259) viewed: 46 isbn: 9781337613927 | Calculus: Early Transcendentals - 9 Edition - Chapter 2.6 - Problem 22
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