whitout adding find the sum of 1+3+5+7+9+11+13
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Answer:
49 I think maybe worng
Step-by-step explanation:
You said without finding sum so I guessed it
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Step-by-step explanation:
In this series, by counting we can find that the total odd numbers are 12, i.e, n=12, So by equation (1) we can write, 1+3+5+7+9+11+13+15+17+19+21+23 = 122 = 12×12 =144.
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