Math, asked by namratadua, 1 year ago

find the sum of first 20 term of the AP following 1, 4, 7, 10

Answers

Answered by Anonymous

5

Answer:

hope it helps u mate...

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Attachments:

Answered by babyyadav11

2

Answer:

a=1

d=3

s₂₀=n/2[2a±(n-1)d]

=20/2[2±57]

=10×59

=590

Step-by-step explanation:

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