Let the line lie in the plane
.Then equals to
As we learnt in
Condition for line to be lie in plane -
and or
and
-
(2,1,-2) lies in
Also,
Since line 1 isperpendicular to normal plane, 3-15-2k=0
k= -6
Option 1)
Correct answer
Option 2)
Incorrect answer
Option 3)
Incorrect answer
Option 4)
Incorrect answer
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