Here in this Question you have to find the sum of first *n* odd natural numbers.

This is the Important question based on Arithmetic progression Chapter of R.S Aggarwal book for ICSE & CBSE

Board.

This is the Question Number 15 Of Exercise 11 D of RS Aggarwal Solution.

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# Find the sum of first n odd natural numbers.

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First n natural numbers

1 , 3 , 5 , 7 , 9 … ( 2n – 1 ).