The value of `(9^(2)+40^(2))^(3/2)=`

Given that 1^(2) + 2^(2) + 3^(2) + ... + 20^(2) = 2870 , the value of (2^(2) + 4^(2) + 6^(2) + ... + 40^(2)) is :

The value 9^(3/2) is :

The value of: (9^(x)(9^(x-1)))^(x)/(9^(x+1).3^(2x-2)){(729^(x/3))/81}^(-x) + (3^(a) -2^(3) .3^(a-2))/(3^(a) -3^(a-1)) is:

"The value of "9^(3/2)" is "

Find the value of 9^(3/2)

The value of (-3)^(-2) is (-1)/(9)