Math, asked by tanveerwani152, 2 days ago

verify: 1+2+3...+n =n(n+1)/2, taking n = 6and 15

Answers

Answered by adishmangla8

0

Answer:

1+2+3....+15= 15(15+1)/2

120=120

1+2+3+4+5+6=6(6+1)/2

21=21

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