m=3∠DAB=60°,AD=AA1

问题描述:

m=3∠DAB=60°,AD=AA1
U={1,2,3,4,5}y(5)=52-4*5 5=10

U={1,2,3,4,5}相对23x(-5)-(-3)/(3/128)相对f(x)=ax^2 bx cy=x^3 x-2