Which statement best describes the limit shown below?x→∞lim−2x10−8log3xx10The 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−2x10−8log3xx10The limit equals zeroThe limit does not existThe limit exists and does not equal zero
Given Limit Expression: We are given the limit expression:limx→∞−2x10−8log3xx10To find the limit as x approaches infinity, we need to analyze the behavior of the numerator and the denominator separately.
Highest Power Analysis: First, let's focus on the highest power of x in both the numerator and the denominator. In the numerator, the highest power is x10. In the denominator, the highest power is also x10, which is in the term −2x10.
Simplify by Dividing: Since the highest power of x in both the numerator and the denominator is the same, we can simplify the expression by dividing both the numerator and the denominator by x10.limx→∞−2x10/x10−8log3x/x10x10/x10
Limit as x Approaches Infinity: Simplifying the expression, we get:limx→∞−2−8log3x/x101As x approaches infinity, the term x108log3x approaches zero because the logarithmic function grows much slower than the polynomial function.
Simplify Limit: Now, the limit simplifies to: limx→∞−2−01Which is simply: limx→∞−21
Final Result: The limit of a constant over a constant is just the division of those constants. Therefore, the limit is: (−2)1=−21
Conclusion: Since we have found a finite value for the limit, the correct statement is that the limit exists and does not equal 0.