A) 4
B) 5
C) 3
D) 7
E) 8
Correct Answer: C
Solution :
\[\because \]The roots of given equation are imaginary, then Discriminant, \[25-4{{k}^{2}}<0\] \[\Rightarrow \] \[{{k}^{2}}>\frac{25}{4}\] \[\Rightarrow \] \[k>\frac{5}{2}\] \[\therefore \]Least value of\[k=3\].You need to login to perform this action.
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