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kakasveta [241]
3 years ago
7

If [infinity]∑n=0cn9n is convergent, does it follow that the following series are convergent? (a) [infinity]∑n=0cn(−3)n

Mathematics
1 answer:
Pepsi [2]3 years ago
7 0

Given: The series ∑cₙ9^n is convergent

To find: The series ∑cₙ(-3)^n is convergent or not.

Solution: If the radius of convergence R the we can conclude that R≥4

So, the series will converge as -3<9.

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