Q1:- The sum of first 'n' odd natural numbers is
Q2:- One's digit in the square of 14 and 36 is
11
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Answer 1 The first n odd natural numbers are given by 1,3,5,7,9…… (2n – 1) and this forms an AP. The sum of first n odd natural numbers is n2.
Answer 2 ones digit in the square of 36 is 6.
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