first 20 number sum total
Answers
Answered by
2
sum of first 20 numbes is 210
by Sn formula
Sn=n/2{2a+(n-1)d}
by Sn formula
Sn=n/2{2a+(n-1)d}
Answered by
1
Heya here is ur answer...
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1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20=210
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Hope it helps u..
PriyaGour1316:
plz mark as brainliest
you have no formula about this question after that you request for brailiest
mark me as Brainliest
At least i did it .
my answer is correct
i did it according to my class
ok
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