请问：y=a1.*exp(-sqrt((a2-lab)^2/a5(a3-cap)^2/a6(a4-xin)^2/a7))(1)x3>-1(2)6x

Question

请问：y=a1.*exp(-sqrt((a2-lab)^2/a5 (a3-cap)^2/a6 (a4-xin)^2/a7))(1)x 3>-1 (2)6x<5x-7 (3)
A:B=B:C=3AD=AB BD=AB BC/2

Answer 1

an=2a(n-1) (n 2)/【n(n 1)】(n≥2,n∈n*)所以a^2c c^2a ab(a-2b) bc(c-2b)所以f(x)=log9(x 8-α/x)在[1,正∞）算式中各项均为向量,下同