Question

A rod of length 'a' is divided into two parts at random
The mean value of the sum of the squares on these
nivo segments is
(A) 2a 3
(B) 3a 2
(C) 2a/3
(D) 3a2​

Answer 1

Answer:

a²/2

Step-by-step explanation:

length of the rod = a

let the first part = a/x

So,the second part = a-a/x

Mean = (a²/x² + a² - a²/x²)÷2

(a²)÷2

a²/2