1.

The series \(\sum {{u_n}} \) of positive terms is convergent or divergent as \(\mathop {\lim }\limits_{n \to \infty } \frac{{{u_n}}}{{{u_{n + 1}}}} > 1\) or < 1 then this test is known as

A. comparison test
B. Raabe's test
C. D' Alembert's test
D. Cauchy's condensation test
Answer» D. Cauchy's condensation test


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