The sum of first n odd natural numbers is $(n + 1)^{2} .$ If you think this is true write 1 otherwise write 0 ?

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Solution

First 'n' odd natural numbers are $1, 3, 5, 7, 9................$
$a = 1, d = 2$
Thus sum is $= \frac{n}{2} (2 + (n - 1) 2) = n^{2}$
Hence given statement is false.

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