Question

已知2的x次方=3,2的y次方=6,2的z次方=12,试求x,y,z的关系?

Answer 1

2^x=3

2^y=6=2*3=2*2^x=2^(x+1)

y=x+1

y-x=1

2^z=12=2^2*3=2^2*2^x=2^(x+2)

z=x+2=x+2(y-x)=x+2y-2x=2y-x