Question

What is the scalar triple product?

Answer

Scalar triple product is:
$\mathrm{If\; \; \; }a=a_{1}l+a_{2}m+a_{3}n,$
$b=b_{1}l+b_{2}m+b_{3}n$
$\mathrm{and\; }c=c_{1}l+c_{2}m+c_{3}n,\mathrm{ \; then,}$
$\left[abc\right]=\left|\begin{array}{ccc}{a}_1& a_2& a_3\\ b_1& b_2& b_3\\ c_1& c_2& c_3\end{array}\right|=\left[lmn\right]$

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