1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20 +21+22+23+24+25+26+27+28+29+30
Answer please
1st answer will brilliant answer
Answers
s=n(n+1)/2 here n=number of total term
=30*31/2
=465
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