Question

Solve this by using Formula $\tt 4x^2-2x-1=0$​

Answer 1

Answer:

Let X,Y and Z be three jointly continuous random variables with joint PDF

fXYZ(x,y,z)={

1

3

(x+2y+3z) 0≤x,y,z≤1 0 otherwise

Find the joint PDF of X and Y, fXY(x,y).