A vector= 3i+4j+k and B vector= 2i +j-2k find B cap
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Explanation:
B vector=2i+j-2k
B cap.|B|=B(vector)
Bcap=B(vector)/|B|
Since |B|= √(2)^2+(1)^2+(-2)^2
= √4+1+4 = √9 = 3
B cap= (2i+j-2k)/3
= (2/3)i+(1/3)j-(2/3)k
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