Math, asked by ayush615365, 10 months ago

11. Find the sum of the following without adding.
a. 1 + 3 + 5 + 7 =

Answers

Answered by Mathematicastudent
2

16 please Mark me as the branliest

Answered by Anonymous
3

Answer:

16

Step-by-step explanation:

By the formula Sn = n(n+1)/2

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