Question

Express 81 as odd numbers .
please do it with method

Answer 1

Answer:

To prove: 81 as odd number

Will will get to know it by if it is ending with a odd or even number

So as it is ending with 1 which is an odd number which proves that 81 is also an odd number

Answer 2

Answer:

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

Step-by-step explanation:

You just have too write odd numbers till 17 because thats total of 9 numbers ...and why are we writing 9 odd numbers from the start is because the square root of 81 is 9 thats why ...hers a example

express 49 as odd numbers soo first see the square root and the square root of 49 is 7 so the answer will be

1+3+5+7+9+11+13=49...  and if you add them you will get 49

hope this what you asked for and you have understood

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