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Find the limit as 
x approaches positive infinity.

lim_(x rarr oo)(sqrt(4x^(2)+4x))/(4x+1)=

Find the limit as x x approaches positive infinity.\newlinelimx4x2+4x4x+1= \lim _{x \rightarrow \infty} \frac{\sqrt{4 x^{2}+4 x}}{4 x+1}=

Full solution

Q. Find the limit as x x approaches positive infinity.\newlinelimx4x2+4x4x+1= \lim _{x \rightarrow \infty} \frac{\sqrt{4 x^{2}+4 x}}{4 x+1}=
  1. Identify highest power of x: Identify the highest power of x in the numerator and denominator.\newlineIn the expression (4x2+4x)/(4x+1)(\sqrt{4x^2+4x})/(4x+1), the highest power of x in the numerator inside the square root is x2x^2, and the highest power of x in the denominator is xx.
  2. Divide numerator and denominator: Divide the numerator and the denominator by the highest power of xx in the denominator.\newlineTo simplify the limit, we divide both the numerator and the denominator by xx. This gives us the expression 4+4x4+1x\frac{\sqrt{4 + \frac{4}{x}}}{4 + \frac{1}{x}}.
  3. Take limit as xx approaches infinity: Take the limit as xx approaches positive infinity. As xx approaches positive infinity, the terms 4x\frac{4}{x} and 1x\frac{1}{x} in the expression 4+4x4+1x\frac{\sqrt{4 + \frac{4}{x}}}{4 + \frac{1}{x}} approach 00. This simplifies the expression to 4+04+0\frac{\sqrt{4 + 0}}{4 + 0}, which is 44\frac{\sqrt{4}}{4}.
  4. Simplify the expression: Simplify the expression.\newlineThe square root of 44 is 22, so the expression 44\frac{\sqrt{4}}{4} simplifies to 24\frac{2}{4}, which can be further simplified to 12\frac{1}{2}.
  5. State the final answer: State the final answer.\newlineThe limit of 4x2+4x4x+1\frac{\sqrt{4x^2+4x}}{4x+1} as xx approaches positive infinity is 12\frac{1}{2}.