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The sides (in meters) of a box joining at origin are represented by vectors a= 4i, b= 2i + 3j and c= i+k. The surface area of the box is

Dheeraj Sai , 10 Years ago
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anser 1 Answers
KAPIL MANDAL

Last Activity: 10 Years ago

Surfce area is a vector. So, you do cross product. The ans is 
2×{(a×b)+(b×c)+(c×a)}
 

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