求f(x) f(x 1)=8x 7x=1 rcosA,y=-1 rsinA,r>0,A
问题描述:
求f(x) f(x 1)=8x 7x=1 rcosA,y=-1 rsinA,r>0,A
an=2a(n-1) (n 2)/【n(n 1)】(n≥2,n∈n*)BE=BC CE=BC CA/2;CF=CA AF=CA AB/2
答
0 (BC CA AB)/2对比f(x 3) f(X 4)a>0,f(x)=loga(x^2-ax)在(-1/2,0)上单调递增对比D所以|x|=0,|y-2/1|=0