Page 1 of 1

A function f(x) is even, when?

Posted: Thu Jul 14, 2022 1:14 pm
by answerhappygod
a) f(x) = -f(x)
b) f(x) = f(-x)
c) f(x) = -f(x)f(-x)
d) f(x) = f(x)f(-x)