Question

https://dl.dropbox.com/u/12189012/OS.pdf

Answer 1

here R(x,y) basically means a function which consists of both x and y variables in which the variable x and y can't be seprated like R(x,y) = x^2 +y^2+9xy....he has used R(x,y) because function to be represented is F(x+y) which could inseprable terms of xy...

Answer 2

is it ok @across , but the person who has wriiten that has surely made that difficult