If α\alphaα and β\betaβ are roots of 2x2−5x+1=02x^2 - 5x + 1 = 02x2−5x+1=0, then 1α+1β\frac{1}{\alpha} + \frac{1}{\beta}α1+β1 equals which value?
52\frac{5}{2}25
555
12\frac{1}{2}21
−5-5−5