3f(x 1)-2(x-1)=2x 17a3 2a2b ab2-2a2b-ab2 b3
问题描述:
3f(x 1)-2(x-1)=2x 17a3 2a2b ab2-2a2b-ab2 b3
a>0,f(x)=loga(x^2-ax)在(-1/2,0)上单调递增AD=AB BD=AB BC/2
答
AD=AB BD=AB BC/2比如f(x)=2acos^2x bsinxcosxlimx*sin(1/x) 比如AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)