Question

.已知a大于等于b大于0且3a+b-6=ac+4b-8=0 c的取值范围是

Answer 1

3a+2b-6=ac+4b-8=0

3a+2b-6=0

2b=6-3a b=(6-3a)/2

又因为a大于等于b大于0,

b=(6-3a)/2>0

6>3a

所以 00