A vector ai-4j+bk is parallel to I+j-2k and perpendicular to i-4j+ck.Find a,b,c.
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if two vectors are perpendicular then angle is zero degrees...so....dot product will be zero......
Parallel and Perpendicular Vectors. Two vectors A and B are parallel if and only if they are scalar multiples of one another. A = k B , k is a constant not equal to zero. Two vectors A and B are perpendicular if and only if their scalar product is equal to zero.
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