Question

設(shè)函數(shù)y=f(x)是奇函數(shù).若f(-2)+f(-1)-3=f(1)+f(2)+3，則f(1)+f(2)=__________.

Answer 1

解析：∵函數(shù)y=f(x)是奇函數(shù)，∴f(-2)=-f(2),f(-1)=-f(1).∴-f(2)-f(1)-3=f(1)+f(2)+3.∴2［f(1)+f(2)］=-6.∴f(1)+f(2)=-3.

答案：-3