if `x+2|y|-3y,` where y is a function of `f(x),` then `f(x)` is

Let f be function satisfying f(x+y)=f(x)+f(y) and f(x)=x^(2)g(x) , for all x and y, where g(x) is a continuous function. Then f'(x) is :

Let f be a function satisfying f(x+y)=f(x)+f(y) and f(x)=x^3phi(x) for all x and y when phi (x) is a continuous function then f''(x) is equal to

If x+2|y|=3y where y=f(x) ,then f(x) is

Find the domain and the range of the function y=f(x) , where f(x) is given by x^(2)-2x-3

Find the domain and the range of the function y=f(x) , where f(x) is given by x^(2)-2x-3

If the function / satisfies the relation f(x+y)+f(x-y)=2f(x),f(y)AA x,y in R and f(0)!=0 ,then f(x) is an even function f(x) is an odd function If f(2)=a, then f(-2)=a If f(4)=b, then f(-4)=-b