Algebra
A real valued function f(x) satisfies the functional equaiton f(x-y) = f(x)f(y) – f(a-x) f(a+y), where a is a given constant and f(0) =1, f(2a – x) is equal to a)f(-x)b)f(a) + f(a – x)c)f(x)d) – f(x)
A real valued function f(x) satisfies the functional equaiton f(x-y) = f(x)f(y) – f(a-x) f(a+y), where a is a given constant and f(0) =1, f(2a – x) is equal to
a)f(-x)
b)f(a) + f(a – x)
c)f(x)
d) – f(x)
