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Math

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PROBLEM

Find the limit as xx approaches infinity for 4x12x+1\frac{4x - 1}{2x + 1}.

STEP 1

Assumptions1. We are asked to find the limit as x approaches infinity for the function 4x1x+1\frac{4x-1}{x+1}.
. We are given that the limit equals.

STEP 2

We start by writing down the given limit expression.
limx+4x12x+1\lim{x \rightarrow+\infty} \frac{4 x-1}{2 x+1}

STEP 3

We divide the numerator and the denominator by xx, which is the highest power of xx in the denominator.
limx+xx1x2xx+1x\lim{x \rightarrow+\infty} \frac{\frac{x}{x}-\frac{1}{x}}{\frac{2x}{x}+\frac{1}{x}}

STEP 4

implify the expression.
limx+41x2+1x\lim{x \rightarrow+\infty} \frac{4-\frac{1}{x}}{2+\frac{1}{x}}

STEP 5

As xx approaches infinity, 1x\frac{1}{x} approaches0. So, we can replace 1x\frac{1}{x} with0 in the expression.
limx+402+0\lim{x \rightarrow+\infty} \frac{4-0}{2+0}

SOLUTION

implify the expression to find the limit.
limx+42=2\lim{x \rightarrow+\infty} \frac{4}{2} =2The limit of the function as xx approaches infinity is indeed2.

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