Find the sum of the first 9 odd numbers using formula.
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2
Answer:
The number series 1, 3, 5, 7, 9, . . . . , 17. Therefore, 81 is the sum of first 9 odd numbers.
Step-by-step explanation:
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Answered by
6
Answer:
the formula is n square.
the sum is 9*9
the sum of the numbers is 81.
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