Skip to content
START WITH A QUESTION

What would you like to understand?

Find an answer. See the moment it becomes clear. Follow the idea further.

← Concept directory

Answers for “如何选择适当的比较函数?”

1 keyword matches

Understanding your question. You can explore the search results below now.

Find a method

↗

To prove convergence, split the integral into [1,2][1,2] and [2,∞)[2,\infty). On [1,2][1,2], the integrand is continuous, so the finite piece is well-defined.

Conditions: The integral is ∫1∞x−2x3+1 dx\int_1^\infty \frac{x-2}{x^3+1}\,dx.; The comparison function is 1x2\frac{1}{x^2}.; The inequality holds for x≥2x \ge 2.