Question

Define infinite Seires and Tests

Answer 1

Answer:

Ans is

Step-by-step explanation:

In mathematics, the ratio test is a test for the convergence of a series \sum _{{n=1}}^{\infty }a_{n}, where each term is a real or complex number and aₙ is nonzero when n is large. The test was first published by Jean le Rond d'Alembert and is sometimes known as d'Alembert's ratio test or as the Cauchy ratio test.