If `f(x ) = x/( x -1 )` , then `f(x)/f( a + 1 )` is equal to

If f(x) = 1/x , then f(a)/f(a + 1) is equal to

If f(x) = ( ( x -1 ) / ( x + 1 ) ) , then f(1/x ) + f( x ) is equal to

If f(x)=(x-1)/(x+1) , then f(ax) in terms of f(x) is equal to

(2) If f(x)=x+(1)/(x) , then [f(x)]^(3)-f(x^(3)) is equal to

If f(x)=(x-1)/(x+1), then f(f(ax)) in terms of f(x) is equal to (a) (f(x)-1)/(a(f(x)-1)) (b) (f(x)+1)/(a(f(x)-1))(c)(f(x)-1)/(a(f(x)+1))(d)(f(x)+1)/(a(f(x)+1))

If f(x)=(x)/(x-1) , then what is (f(a))/(f(a+1)) equal to?

If f(x) = (x-1)/(x+1) , then f(2) is equal to

If f (x) = (x-1)/( x+1) , then f ((1)/( f (x))) equals