If vec(u)= vec(a)- vec(b), vec(v)= vec(a) + vec(b) and |vec(a)| =|vec( – InterviewSolution

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1.	If vec(u)= vec(a)- vec(b), vec(v)= vec(a) + vec(b) and \|vec(a)\| =\|vec(b)\|=2, then \|vec(u) xx vec(v)\|=
Answer» `sqrt(16-(vec(a).vec(b))^(2))` `sqrt(16+ (vec(a).vec(b))^(2))` `2 sqrt(16-(vec(a).vec(b))^(2))` `2sqrt(16 + (vec(a).vec(b))^(2))` Answer :C

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