If t1 and t2 be the parameters of the end points of a focal chord for the parabola y2 = 4ax, then which one is true?
- At1t2 = 1
- B$${{{t_1}} \over {{t_2}}} = 1$$
- Ct1t2 = $$-$$1
- Dt1 + t2 = $$-$$1
✓ Correct answer: C
Want the full step-by-step reasoning?