Question

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Answer 1

Answer:

Therefore, 49 is the sum of first 7 odd natural numbers. 49 = 1 + 3 + 5 + 7 + 9 + 11 + 13 ANSWERS..

i.e. 121 = 1+3+5+7+9+11+13+15+17+19+21.

Answer 2

Answer:

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Step-by-step explanation:

• 49 is the sum of first 7 odd natural numbers. 49 = 1 + 3 + 5 + 7 + 9 + 11 + 13 ANSWERS..
• ..i.e. 121 = 1+3+5+7+9+11+13+15+17+19+21. Thus , 121 is a perfact square.