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If the vertex of the conic y^(2) - 4y=...

If the vertex of the conic ` y^(2) - 4y= 4 x - 4a ` always lies between the straight lines x + y = 3 and 2 x + 2y - 1 = 0 . Then

A

` 2 lt a lt 4`

B

`-(1)/(2) lt a lt 2`

C

`0 lt a lt 2 `

D

`-(1)/(2) lt a lt (3)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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