[" If "f(x)" is a function whese "],[" domain is domain i symmetric "],[" about the oragen,then "f(x)+f(-x)" is "]

If f(x) is a function whose domain is symmetric about the origin,then f(x)+f(-x) is

If f is a real function, find the domain of f(x)=10^(-x)

" The Domain of the function "f(x)=sqrt(|x|-x)" is: "

If domain of y=f(x) is xin[-3,2] , then the domain of f([x]) is

If domain of y=f(x) is xin[-3,2] , then the domain of f([x]) is

The domain of the function f(x)=x is :

Prove that if the domain of definition of the function f(x) is symmetrical with respect to x=0, then f(x) + f(-x) is an even function and f(x)-f(-x) is an odd one.