Math, asked by rajuranjan, 1 year ago

Express 81 as the sum of first nine consecutive odd numbers.

Answers

Answered by ritusaini57
58

81 as the sum if nine consecutive odd numbers

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

Step-by-step explanation:

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Answered by vinod04jangid
0

Answer:

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

Step-by-step explanation:

To find:- Sum of 1st nine consecutive odd numbers

Solution:-

Odd numbers are those whole numbers that cannot be divided by 2, when divided by 2 it leaves a remainder. All numbers except the multiples of 2 are known as odd numbers.

Consecutive odd numbers are the ones that are written in their sequence order i.e. from the smallest to the largest number. We can also say that odd numbers are arranged in an ascending order.

The first 9 consecutive odd numbers are:

1,  3,  5,  7,  9,  11,  13,  15,  17

Sum of the above consecutive odd numbers

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

= 1+3+5+7+9+11+13+32

= 1+3+5+7+9+11+45

= 1+3+5+7+9+56

= 1+3+5+7+65

= 1+3+5+72

= 1 + 3 + 77

= 4 + 77

= 81.

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

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