Math, asked by shana17sheri, 7 months ago

find the following sum?
a) 1+2+3+4+5+......+20

Answers

Answered by tanejakca

2

20*21/2 = 210
As sum of n natural no = n(n+1)/2

Answered by viswanadhvissu99

0

Answer:

210

Step-by-step explanation:

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