Product of two odd functions is
Let f(x), g(x) be odd Let F(x) = f(x)g(x) F(–x) = f(–x)g(–x) = F(x) therefore F(x) is even
The function f(x)=(tanx11)ex5sgn(x11)[13x2+2] where [⋅] denotes greatest integer function, is:
The function f(x)=log(x+√x2+1), is