Math, asked by khushikhullar84, 4 months ago

without adding, find the sum of the following
1+3+5+7+9+11+13.

Answers

Answered by MrPotter

0

Answer:

n = numbers

l = last no.

sum = (l+1)×3 + (l+1)/2

= 14 ×3. +. 14/2

= 42 + 7

= 49

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