how to show that sum of n odd terms =n^2
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Step-by-step explanation:
The sequence of first n odd numbers is 1,3,5,7.........n
This forms an A.P with a=1 and d=2
S= n/2 {2a+(n−1)d}
⇒S= n/2 {2(1)+(n−1)2}
⇒S= n/2 (2n)
⇒S=n^2
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