Let A be a vector parallel to line of intersection of planes P1:x=0 an – InterviewSolution

1.	Let A be a vector parallel to line of intersection of planes P1:x=0 and P2:x−y−z=0 through origin. The acute angle between A and 2^i+^j−2^k is
Answer» Let $A$ be a vector parallel to line of intersection of planes $P_{1} : x = 0$ and $P_{2} : x - y - z = 0$ through origin. The acute angle between $A$ and $2^i +^j - 2^k$ is

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