A) \[(1,-1,-3)\]
B) \[(+3,-3,-1)\]
C) \[(-2+\sqrt{3},2-\sqrt{3},-1)\]
D) \[\left( \frac{1}{2},\frac{1}{2},9 \right)\]
Correct Answer: B
Solution :
(b): Let zeros be \[\alpha ,-\alpha ,\beta \] Then, Sum of roots\[=\beta =-1\]: Also, \[\alpha \beta -\alpha \beta -{{\alpha }^{2}}=-9\Rightarrow \alpha =\pm 3\] \[\therefore \] Roots are \[=\left( 3,-3,-1 \right)\] or \[\left( -3,\text{ }3,-1 \right)\].You need to login to perform this action.
You will be redirected in
3 sec