题目内容
已知函数f(x)满足:f(p+q)=f(p)f(q),f(1)=3,则的值为
A.15
B.30
C.75
D.60
A.a<b<c B.b<c<a
C.c<b<a D.c<a<b
已知函数f (x)满足:f ( p + q) = f ( p) f (q),f (1) = 3,则+ +++的值为_______________.