Expression of x+y+3 in powers of (x-1) and (y-1) is o 3+(x-1)-(y-1) o -1)-(y-1) 3+(x-1) none of these ifu is a homogeneous function of x and y of degree n, then

Expression of x+y+3 in powers of (x-1) and (y-1) is O 3+(x-1)-(y-1) O -1)-(y-1) 3+(x-1) None of these Ifu is a homogeneous function of x and y of degree n, then x2t21t xdy O nu O n(n-1)u O n(n+1)u ONone of these