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If the focus of the parabola \((y-k)^2=4(x-h)\) always lies between the lines \(x+y=1\) and \(x+y=3\) then:

Q1
PYQ

If the focus of the parabola

\((y-k)^2=4(x-h)\)

always lies between the lines \(x+y=1\) and \(x+y=3\) then:

a

\(0

b

\(0

c

\(1

d

\(1

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