A) 6/7
B) 7/6
C) 7/10
D) 8/9
Correct Answer: B
Solution :
\[\alpha +\beta =7,\alpha \beta =6.\]So \[\frac{1}{\alpha }+\frac{1}{\beta }=\frac{\alpha +\beta }{\alpha \beta }=\frac{7}{6}\]
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