If the equation x2 – ax + 1 = 0 has two distinct roots, then
If roots of given equation are distinct then
d = b2 – 4ac > 0
Here a = 1, b = a, c = 1
So, a2 – 4(1) (1) >0
a2 – 4 > 0
a2 >4
|a| > 2