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OpenStudy (anonymous):
Find the value of x so that the vector A=2i + xj + k and B = 4i - 2j - 2k are perpendicular to each other.
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hartnn (hartnn):
can you take dot product ?
hartnn (hartnn):
for perpendicular vectors, dot product =0
OpenStudy (anonymous):
Oh pellet.. forgot about that XD thanx
hartnn (hartnn):
welcome ^_^
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