66/b-40/a=3(1)
4b-4a=1(2)
化简(1)
66a-40b=3ab(3)
由(2)
b=(1+4a)/4(4)
(4)代入(3)
66a-10-40a=3a(1+4a)/4
26a-10=(3a+12a²)/4
104a-40=3a+12a²
12a²-101a+40=0
a=(101±91)/24
a=8或a=5/12
当a=8时,b=33/4
当a=5/12时,b=2/3
66/b-40/a=3(1)
4b-4a=1(2)
化简(1)
66a-40b=3ab(3)
由(2)
b=(1+4a)/4(4)
(4)代入(3)
66a-10-40a=3a(1+4a)/4
26a-10=(3a+12a²)/4
104a-40=3a+12a²
12a²-101a+40=0
a=(101±91)/24
a=8或a=5/12
当a=8时,b=33/4
当a=5/12时,b=2/3