Three mutually unequal rational numbers can be expressed in the form of 1, a + B, a, or in the form of 0, B, B of a, then a = ()

Three mutually unequal rational numbers can be expressed in the form of 1, a + B, a, or in the form of 0, B, B of a, then a = ()

1, a + B, a or 0, B, B of a
So there's B / A, a at the denominator, so a can't be equal to 0
So in 1, a + B, a, only a + B = 0
a=-b
b/a=-1
So the three numbers are 1,0, a or 0, - 1, B
So a = - 1