A group of friends went on a holiday to a hill station. It rained for 15 days. But when it rained in the morning, the afternoon
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In three dimensions, the cross product of two vectors is defined as shown below
Then, solving the determinant
In our case,
Where we used the formula for AxB to calculate ixj.
Finally,
Thus, (i+j)x(ixj)=i-j