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Let the acute angle bisector of the two planes \(x-2 y-2 z+1=0\) and \(2 x-3 y-6 z+1=0\) be the plane \(P\). Then which …

Q1

Let the acute angle bisector of the two planes \(x-2 y-2 z+1=0\) and \(2 x-3 y-6 z+1=0\) be the plane \(P\). Then which of the following points lies on \(P\) ?

a

\(\left(3,1,-\frac{1}{2}\right)\)

b

\(\left(-2,0,-\frac{1}{2}\right)\)

c

\((0,2,-4)\)

d

\((4,0,-2)\)

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