Question

x#y) = x + y- xy (x*y) = (x + y)/2 i) find the values of x, y will satisfy this equation (x#y)#(x*y) < (x#y) ii) find the values of x, y will satisfy this equation (a*b)#(b*c)< (a#b)*(b*c)

Answer 1

Step-by-step explanation:

... number pairs (x,y) which will satisfy the equation x 2 -xy+y 2 =4(x+y-4) . ... by applying delta =0 condition we see that the above represents a ... so for y=4 only one value of x=4 possible.