f(x)=(2mx-m^2 1)/(x^2 1)(x∈R)0 (BC CA AB)/2
问题描述:
f(x)=(2mx-m^2 1)/(x^2 1)(x∈R)0 (BC CA AB)/2
B=0
答
M=,N=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)]=1y=cosx=sin(x 丌/2)