已知f(x)ax^5+bx^3+cx+3,若f(-3)=9,求f(3)的值
问题描述:
已知f(x)ax^5+bx^3+cx+3,若f(-3)=9,求f(3)的值
答
-3步骤。。怎么写应该是-3f(-3)=a(-3)^5+b(-3)^3+c(-3)+3=-(3^5a+3^3b+3c)+3=9(3^5a+3^3b+3c)=-6f(3)=(3^5a+3^3b+3c)+3=-6+3=-3