A) 5
B) 7
C) 9
D) 10
Correct Answer: B
Solution :
Let roots are \[\alpha \]and\[\beta \]. Hence, \[{{\alpha }^{2}}+{{\beta }^{2}}={{(\alpha +\beta )}^{2}}-2\alpha \beta ={{(3)}^{2}}-2\times 1=7\].
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