Practice Infinity in Math
Use these practice problems to test your method after reviewing the concept explanation and worked examples.
Quick Recap
A concept representing a quantity that grows without bound — infinity is not a real number but a description of unbounded behavior.
Going on forever without end. Infinity is a direction or limiting idea, not a number you can reach or write down.
Example 1
easyEvaluate \lim_{x \to \infty} \frac{3x^2 + 5}{x^2 - 1}.
Example 2
mediumEvaluate \lim_{x \to \infty} \frac{2x^3 - x}{5x^2 + 3}.
Example 3
easyEvaluate \lim_{x \to \infty} \frac{1}{x^3}.
Example 4
mediumEvaluate \lim_{x \to 0^+} \frac{1}{x^2}.