Problem

Given vectors a=[3,1,2] and b=[2,4,1], find the vector ab.

Answer

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Answer

The third component of ab is 2(1)=3

Steps

Step 1 :The subtraction of two vectors is done component-wise. This means that to subtract b from a, we subtract the corresponding components of b from a.

Step 2 :The first component of ab is 32=1

Step 3 :The second component of ab is 14=5

Step 4 :The third component of ab is 2(1)=3

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