Series and sequence

Posted on 2019 March 30 at 7:52:48 AM
What is the sum of 2/5-6/5^2+10/5^3-14/5^4, till infinite?
Rishav

1 Answer on this Question

Answered on 2019 April 08 at 11:44:20 AM

let the sum of S. multiply both sides by l/ 5 and add: S + S/5 = 2/5 - 4/5² + 4/5³ - … a g p with common radio -1/5. using a/(1 - r), u can find the sum easily.

Hari Prasad Chaudhary

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