Math, asked by s62822346, 9 months ago

find the sum of 20 terms if the arithmetic progression is 1 + 4 + 7

Answers

Answered by soniaarora8

2

Step-by-step explanation:

1+4+7+10+13+16+19+22+25+28+31+34+43+37+40+46+49+52+55+58=590

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