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t(1) and t(2) are the parameters of the ...

`t_(1)` and `t_(2)` are the parameters of the end-points f a focal chord of a parabola. Then

A

`t_(1)+t_(2)=-1`

B

`t_(1) t_(2)=-1`

C

`t_(1) t_(2)=1`

D

`t_(1)+t_(2)=1`

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The correct Answer is:
B
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