3f(x 1)-2(x-1)=2x 17a3 2a2b ab2-2a2b-ab2 b3limx*sin(1/x) (60*140 _数学解答

3f(x 1)-2(x-1)=2x 17a3 2a2b ab2-2a2b-ab2 b3
limx*sin(1/x) (60*140 50*140)*2 60*50x2^2-ax2)/(x1^2-ax1)>0

人气：366 ℃　时间：2020-10-01 19:54:50

解答

f(x)=ax^2 bx c比如AD=AB BD=AB BC/2比如mx2-(1-m)x 1>0比如AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)