Determine whether the function `f(x) = log(x+sqrt(x^(2)+1))` is even or odd.

Determine whether the function f(x) = x((e^(x)-1)/(e^(x)+1)) is even or odd

Determine whether the function f(x) = a^(x) - a^(-x) + sinx is even or odd.

Determine whether the function f(x) = a^(x) - a^(-x) + sinx is even or odd.

Determine whether the function f(x) = sin x + cos x is even or odd.

Determine whether the function f(x)=a^(x)-a^(-x)+sinx is even or odd.

If f(x)=x.log((1-x)/(1+x)), determine whether the function f is even or odd or neither.

Determine whether the function f(x)=sinx+cosx is even or odd.

I : Ever function must be either even or odd function The function f(x)=log(x+sqrt(x^(2)+1)) is an odd function.