A plane which bisects the angle between the two given planes and , passes through the points:
(1,-4,1)
(1,4,-1)
(2,4,1)
(2,-4,1)
=> Required equation of planes are
and
Now, substituting the options we will get , the point ( 2, -4 , 1 ).
(1,-4,1)
Option 2)(1,4,-1)
Option 3)(2,4,1)
Option 4)
(2,-4,1)
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