Math, asked by mihirjani30, 2 months ago

Find the sum of the first 20 terms of the AP 5,11, 17, ..

.

Answers

Answered by kilarisravani77

0

Answer:

1240

Step-by-step explanation:

n/2(2a+(n-1)d))
20/2(10+(19*6))
10(10+114)
10(124)
1240.

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