Math, asked by adarsh673990, 1 day ago

The sum of first 18 terms of AP 1+4+7+..

Answers

Answered by jyotidevi2393

0

a = 1

d = 3

S18 = 18/2 {(2*1) (18-1)3}

= 9 * 2 * 17 = 306

Answered by dgmalaza

0

Answer:

7

11

Step-by-step explanation:

just bluneshe the numbers

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