1+2+3+4+5+6+7+8+9+10..................................+1000
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What's your question
akshatkrishna:
I am not able to understand
Answered by
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sum of term =n/2{2a+(n-1)d}
100/2{2+999×1}
50×10000
=500000
100/2{2+999×1}
50×10000
=500000
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