Math, asked by niranjan7324, 8 months ago

the sum of first 20 terms of the series 1+2+3+4_ is _

Answers

Answered by mirzashaheen500

2

Answer:

it's 10 but why you left is _ like this

Answered by singrohaaniket

0

Answer:

s=2A+(n-1)d

=2+19*1

21

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