An even function f(for all values of x and x holds
A. f(x) = f(-x)
B. f(x) = -f(x)
C. f(x) = f(x)f(-x)
D. None of the above
Answer:A
An even function f(for all values of x and x holds
A. f(x) = f(-x) B. f(x) = -f(x) C. f(x) = f(x)f(-x) D. None of the above