设f(x)=x^3+bx+c是[-1,1]上的增函数,且f(-1/2)乘以f(1/2)

问题描述:

设f(x)=x^3+bx+c是[-1,1]上的增函数,且f(-1/2)乘以f(1/2)

显然得.f(-1/2)乘以f(1/2)