Teaching TN TRB EE Test Series Engineering Mathematics Calculus

If a + b + c = 0 then the quadratic equation 3ax2 + 2bx + c = 0 has

1
Both roots imaginary
2
At least one root in [0, 1]
3
One root in [2, 3] and another in [-2, -1]
4
None of the above
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