Q. Find the limit as x approaches positive infinity.x→∞lim4x+14x2+4x=
Identify highest power of x: Identify the highest power of x in the numerator and denominator.In the expression (4x2+4x)/(4x+1), the highest power of x in the numerator inside the square root is x2, and the highest power of x in the denominator is x.
Divide numerator and denominator: Divide the numerator and the denominator by the highest power of x in the denominator.To simplify the limit, we divide both the numerator and the denominator by x. This gives us the expression 4+x14+x4.
Take limit as x approaches infinity: Take the limit as x approaches positive infinity. As x approaches positive infinity, the terms x4 and x1 in the expression 4+x14+x4 approach 0. This simplifies the expression to 4+04+0, which is 44.
Simplify the expression: Simplify the expression.The square root of 4 is 2, so the expression 44 simplifies to 42, which can be further simplified to 21.
State the final answer: State the final answer.The limit of 4x+14x2+4x as x approaches positive infinity is 21.
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