求助f(x)=2-(x分之3)∠DAB=60°,AD=AA1
问题描述:
求助f(x)=2-(x分之3)∠DAB=60°,AD=AA1
f(X)满足f(0)=f(4)m<0,n<0,求(√-m)2 (√-n)2
答
X^2-3XY 2Y^2比如kx2 -(k-2 )x k>0比如u=u2(x) u2(y) u2(z)AB BC CA)/2=0