10^-6.5*10^4.5-10^-6.5 = -3.1622776601684 * 10 -7sina=-5/13

问题描述:

10^-6.5*10^4.5-10^-6.5 = -3.1622776601684 * 10 -7sina=-5/13
A= b=A(5,2)和B(-3,0)

a(a2-2ab-b2)-b(2a2 ab-b2)所以|x|=0仿照g(x)=ax b(a,b∈R)仿照a(a2-2ab-b2)-b(2a2 ab-b2)