Question

Find the sum of first 9 consecutive odd number

Answer 1

there are first 9 consecutive odd numbers

1,3,5,7,9,11,13,15,17

1+3+5+7+9+11+13+15+17=81

u can find using formula:

sum of consecutive odd number =n to the power 2.

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Answer 2

first 9 consecutive odd numbers:-

1,3,5,7,9,11,13,15,17

A/Q,

1+3+5+7+9+11+13+15+17= 81(ans)