What is (2a)^2 ? Help please
2 answers:
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Answer: i - j - k
Step-by-step explanation:
Taking the cross product between two vectors will give you a third vector that is orthogonal(perpendicular) to both vectors.
<1,1,0> x <1,0,1>
the determinate of the matrix: <1,-(1),-1>
or: i - j - k