Math, asked by karan12324, 9 months ago

without adding find the sum 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17

Answers

Answered by Thesolver

1

Let a=1 d=2 n=9 l=17

Sum=n/2[a+l]
=9/2[1+17]
=9/2(18)
=9*9
=81

Answered by uzair48

0

Step-by-step explanation:

number of digit=9

square of 9

9×9=81

check it!

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