Question

write in the sum of odd numbers
1- square root of 11
2- square root of 9​

Answer 1

square root of 11 is 121

square root of 9 is 81

sum of 11 odd number is 1,3,5,7,9,11,13,17,19,21

sum of 9 odd number is

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

Answer 2

(1) 121      (2) 81

Step-by-step explanation:

(1) square of root of 11

1+3+5+7+9+11+13+15+17+19+21

by using formula = $n^2$

where n = number of term

where are 11 term in question

$11^2=121$

(2) square root of 9 is

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

by using formula = $n^2$

where n = number of terms

there are 9 terms in the question

$9^2=81$