without adding. find the sum?
1+3+5+7+9+11+13
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Answered by
17
7^2 = 49. Because Sum of 7 Consecutive Odd Numbers is 7^2
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Answered by
14
Hi ,
We know that ,
Sum of first ' n ' odd natural numbers = n²
Here , n = 7 ( first 7 odd natural numbers )
1 + 3 + 5 + 7 + 9 + 11 + 13 = 7² = 49
I hope this helps you.
: )
We know that ,
Sum of first ' n ' odd natural numbers = n²
Here , n = 7 ( first 7 odd natural numbers )
1 + 3 + 5 + 7 + 9 + 11 + 13 = 7² = 49
I hope this helps you.
: )
ya .
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