Which statement best describes the limit shown below?x→∞lim−2x24+log5x2x16−3x24The limit equals zeroThe limit does not existThe limit exists and does not equal zero
Q. Which statement best describes the limit shown below?x→∞lim−2x24+log5x2x16−3x24The limit equals zeroThe limit does not existThe limit exists and does not equal zero
Analyze Behavior as x Approaches Infinity: We need to analyze the behavior of the function as x approaches infinity. To do this, we will compare the degrees of the polynomials in the numerator and the denominator.
Compare Highest Degree Terms: The highest degree term in the numerator is −3x24 and in the denominator is −2x24. As x approaches infinity, the terms with lower degrees become insignificant compared to the highest degree terms.
Simplify by Dividing Highest Power: We can simplify the limit by dividing both the numerator and the denominator by x24, the highest power of x present in the expression.x→∞lim−2x24+log5x2x16−3x24=x→∞lim−2+x24log5xx82−3
Simplify as x Approaches Infinity: As x approaches infinity, x82 and x24log5x both approach 0. Therefore, the limit simplifies to: x→∞lim(−2−3)=23
Conclusion: The limit exists and does not equal zero. The correct statement is "The limit exists and does not equal 0."