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प्रश्न
Express 121 as the sum of 11 odd numbers.
उत्तर
We know that the sum of first n odd natural numbers is n2.
121 = (11)2
Therefore, 121 is the sum of the first 11 odd natural numbers.
121 = 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21
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संबंधित प्रश्न
Without adding find the sum:
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Without adding, find the sum:
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