Let the Vectors →a,→b,→c,→d be such that (→a×→b)×(→c×→d)=→0. Let p1,p2 be planes determinated by the pair of vectors →a,→b and →c,→d respectively, then the angle between p1, and p2 as
A
00
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B
300
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C
450
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D
600
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Solution
The correct option is A00 On reading the given information about all the vectors, we come to know that planes p1 and p2 are parallel, since the vector product given is zero. Thus, the angle between them becomes 0o.