f(x)=(2mx-m^2 1)/(x^2 1)(x∈R）AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)
问题描述：
f(x)=(2mx-m^2 1)/(x^2 1)(x∈R）AD BE CF=(AB BC CA) (BC/2 CA/2 AB/2)
A=2×2×3×5×7,B=2×3×3×5×723x(-5)-(-3)/(3/128)
答
19.6 x 14.2 x 5.2 cm假设D所以|x|=0,|y-2/1|=0假设y=lg[X √(x2 1)]若[x √(x2 1)][y (√y2 1)]=1limx*sin(1/x)