Math, asked by sreyashiny2002, 1 year ago

find the sum of first
10terms of an Ap


sreyashiny2002: friend plz will you tell this

Answers

Answered by Jaba10
3
S=n/2[2a+(n-1)d]
S,10=10/2[2a+(10-1)d]
=5(2a+9d)
=10a+45d

sreyashiny2002: no the answer is 570
Jaba10: you hadn't wrote the A.P.series
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