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  4. The value of [a-b,b-c,c-a] where |a|=1,|b|=2 then |c|=3 is

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Q. The value of $[\overrightarrow{a}-\overrightarrow{b},\overrightarrow{b}-\overrightarrow{c},\overrightarrow{c}-\overrightarrow{a}]$ where $|\overrightarrow{a}|=1,|\overrightarrow{b}|=2$ then $|\overrightarrow{c}|=3$ is

Vector Algebra

Solution:

Value $\left[\vec{a}\,\vec{b}\,\vec{c}\right]-\left[\vec{a}\,\vec{b}\,\vec{c}\right]=0$