can someone help me with this question?

let z = F(x, y) = x^2 -y +1

b)find the functions g(x,y)= f( f(x,y) , y) and h(x,y)= f(x, (f(x,y) )

c)If f(x,y)= f(y,x) and x cannot equal to y

show that y= -x -1

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- March 2nd 2009, 06:31 PMKQ_jaii dont understand the notations.
can someone help me with this question?

let z = F(x, y) = x^2 -y +1

b)find the functions g(x,y)= f( f(x,y) , y) and h(x,y)= f(x, (f(x,y) )

c)If f(x,y)= f(y,x) and x cannot equal to y

show that y= -x -1 - March 2nd 2009, 07:07 PMronaldo_07
- March 2nd 2009, 07:25 PMarpitagarwal82
a

f( f(x,y) , y)

=

b

f(x,y)= f(y,x)

since x - y is not equal to zero, we can divide equation by x - y