JEE Math Practice Question
Consider the three planes P1 : 3x + 15y + 21z = 9, P2 : x $$-$$ 3y $$-$$ z = 5, and P3 : 2x + 10y + 14z = 5 Then, which one of the following is true?
- A.P1 and P2 are parallel.
- B.P1, P2 and P3 all are parallel.
- C.P1 and P3 are parallel.
- D.P2 and P3 are parallel.
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