Which statement best describes the limit shown below?x→∞lim3x71+x29x71+log3xThe limit equals zeroThe limit does not existThe limit exists and does not equal zero
Q. Which statement best describes the limit shown below?x→∞lim3x71+x29x71+log3xThe limit equals zeroThe limit does not existThe limit exists and does not equal zero
Given Limit Analysis: We are given the limit: limx→∞3x71+x29x71+log3xTo find the limit as x approaches infinity, we need to analyze the behavior of the numerator and the denominator separately.
Highest Power Comparison: First, let's consider the highest power of x in both the numerator and the denominator, which will dominate the behavior of the function as x approaches infinity.In the numerator, the highest power of x is x71.In the denominator, the highest power of x is 3x71.
Simplification by Division: We can divide both the numerator and the denominator by x71 to simplify the expression.This gives us:limx→∞(x71x71+x71log3x)/(x713x71+x71x29)
Limit of Individual Terms: Simplifying the powers of x, we get: limx→∞(3+(x29/x71)1+(log3x)/x71)
Final Simplification: As x approaches infinity, x71log3x approaches 0 because the logarithmic function grows much slower than the power function x71.Similarly, x71x29 also approaches 0 because the exponent in the numerator is much smaller than the exponent in the denominator.
Final Simplification: As x approaches infinity, x71log3x approaches 0 because the logarithmic function grows much slower than the power function x71.Similarly, x71x29 also approaches 0 because the exponent in the numerator is much smaller than the exponent in the denominator.After taking the limits of the individual terms, we get:limx→∞3+01+0
Final Simplification: As x approaches infinity, x71log3x approaches 0 because the logarithmic function grows much slower than the power function x71.Similarly, x71x29 also approaches 0 because the exponent in the numerator is much smaller than the exponent in the denominator.After taking the limits of the individual terms, we get:limx→∞3+01+0Simplifying the expression, we find that the limit is:limx→∞31
Final Simplification: As x approaches infinity, x71log3x approaches 0 because the logarithmic function grows much slower than the power function x71. Similarly, x71x29 also approaches 0 because the exponent in the numerator is much smaller than the exponent in the denominator.After taking the limits of the individual terms, we get: limx→∞3+01+0 Simplifying the expression, we find that the limit is: limx→∞31 The limit of a constant is the constant itself, so the limit is: 31