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Question

The value of [i+j,j+k,k+i] is equal to:

A
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B
1
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C
2
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D
4
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Solution

The correct option is C 2
The Scalar triple product can be written as:

(i+j).[(j+k)×(k+i)]

=(i+j).(ik+j)

=1+1=2

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