the unit vector perpendicular to the plane containing A and B if A=2i -3j-k;B=i+4j -2k
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Explanation:
Given A = 2i-3j-k
B = i+4j-2k
A X B is the vector perpendicular to the plane containing A and B
A X B
= i(6+4)-j(-4+1)+k(8+3)
= 10i+3j+11k
unit vector
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