When you take the integral using the series as integrand, it converges if the integral worked out to be a number. If it's infinte, the series diverge.
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The comparison test states that if a series of positive numbers converges, and in another series, each of the corresponding terms is smaller, then it too must converge. Similarly, if a series of positive numbers diverges to infinity, and another series has each of its terms greater than the corresponding terms of the other, then it too diverges.
Experiment with this question, please.
There is no way to know the questions on your teacher's test.
Depends on the test. Look and see if there is scale or key.
He created the first form of an intelligence test named the Binet test, and what we now know as the IQ test.