The magnitude of cross product and dot product of two vectors are equal.angle between vectors?
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Dot product is maximum when two non-zero vectors are perpendicular to each other. Two vectors are parallel ( i.e. if angle between two vectors is 0 or 180 ) to each other if and only if a x b = 1 as cross product is the sine of angle between two vectors a and b and sine ( 0 ) = 0 or sine (180) = 0.
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