Math, asked by amisha533, 1 year ago

find the sum of all odd numbers less than 50 in AP

Answers

Answered by Darshan4510

0

a=1
d=2
an=49
an=1+(n-1)×2
n=25
Sn=25/2(2×1+(25-1)×2)
Sn=25/2(50)
Sn =625

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