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Which statement best describes the limit shown below?

lim_(x rarr oo)(ln x+10x^(20))/(x^(88)+e^(x))
The limit equals zero
The limit does not exist
The limit exists and does not equal zero

Which statement best describes the limit shown below?\newlinelimxlnx+10x20x88+ex \lim _{x \rightarrow \infty} \frac{\ln x+10 x^{20}}{x^{88}+e^{x}} \newlineThe limit equals zero\newlineThe limit does not exist\newlineThe limit exists and does not equal zero

Full solution

Q. Which statement best describes the limit shown below?\newlinelimxlnx+10x20x88+ex \lim _{x \rightarrow \infty} \frac{\ln x+10 x^{20}}{x^{88}+e^{x}} \newlineThe limit equals zero\newlineThe limit does not exist\newlineThe limit exists and does not equal zero
  1. Analyze Behavior: We need to analyze the behavior of the numerator and the denominator as xx approaches \infty to determine the limit.
  2. Numerator Growth: The numerator lnx+10x20\ln x + 10x^{20} grows without bound as xx approaches infinity, but at a much slower rate than x20x^{20} because the logarithmic function grows slower than any polynomial.
  3. Denominator Growth: The denominator x88+exx^{88} + e^x also grows without bound as xx approaches infinity. However, exe^x grows much faster than any polynomial, including x88x^{88}.
  4. Comparison of Growth Rates: Since exe^x in the denominator grows faster than any term in the numerator, the fraction as a whole approaches zero as xx approaches infinity.
  5. Limit Conclusion: Therefore, the limit of lnx+10x20x88+ex\frac{\ln x + 10x^{20}}{x^{88} + e^x} as xx approaches infinity is 00.

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