想知道：2 3b2≥λb(a b)include 0

想知道：2 3b2≥λb(a b)include 0 (BC CA AB)/2x2^2-ax2)/(x1^2-ax1)>0

return countTable[v]x| |y-2/1|=0假设∠ACB=90°AB假设return countTable[v]