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What is the magnitude of resultant of cross product of two parallel vectors a and b?(a) |a|.|b|(b) |a|.|b| cos(180)(c) |a|.|b| sin(180)(d) 1The question was posed to me in quiz.This question is from Computational Geometry topic in chapter Computational Geometry of Data Structures & Algorithms II

Answer»

The correct CHOICE is (c) |a|.|b| sin(180)

To explain: The resultant of CROSS product of 2 parallel VECTORS is always 0 as the angle between them is 0 or 180 degrees. So the answer is |a|.|b| sin(180).



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