If `f(x)=x/(x-1)` then find `f(a)/f(a+1)`

If f(x)=(x-|x|)/(|x|) , then find f(-1).

f(x)=x/(x-1) then (f(a))/(f(a+1)) is equal to a. f(-a) b. f(1//a) c. f(a^2) d. f(-a/(a-1))

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

If f(x)=(x-4)/(2sqrt(x)) , then find f'(1)

Let f:DtoR , where D is the domain of f . Find the inverse of f if it exists: Let f:[0,3]to[1,13] is defined by f(x)=x^(2)+x+1 , then find f^(-1)(x) .

If f :[2,oo)rarr(-oo,4], where f(x)=x(4-x) then find f^-1(x)

If f(x)=(x)/(x-1) , then evaluate : (f(a//b))/(f(b//a))

If f: R^+ to R , f(x) + 3x f(1/x)= 2(x+1),t h e n find f(x)

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

If f(x)=x^2+x+1 , then find the value of 'x' for which f(x-1) =f(x)