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# If t_{1} and t_{2} be the ends of a focal chord of the parabola y^{2} = 4ax, then the equation t_{1}x^{2} + ax + t_{2} = 0 has

- imaginary roots
- both roots positive
- one positive and one negative roots
- both roots negative.

## The correct answer is: one positive and one negative roots

### Product of roots 0

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