If $A = \left\lbrack \begin{array}{r} 3\ \ 5 \ 2\ \ 0 \end{array} ight brack$and $B = \left\lbrack \begin{array}{r} 1\ \ \ \ \ \ \ \ \ 17 \ 0\ \ \ - 10 \end{array} ight brack,$then $|AB|$ is equal to

Question

If $A = \left\lbrack \begin{array}{r} 3\ \ 5 \ 2\ \ 0 \end{array} ightbrack$and $B = \left\lbrack \begin{array}{r} 1\ \ \ \ \ \ \ \ \ 17 \ 0\ \ \ - 10 \end{array} ightbrack,$then $|AB|$ is equal to

Dr. Abubacker · Accepted Answer

(b)
$AB = \left\lbrack \begin{array}{r}
3\ \ 5 \
2\ \ 0
\end{array} ightbrack\left\lbrack \begin{array}{r}
1\ \ \ \ \ \ \ \ \ 17 \
0\ \ \  - 10
\end{array} ightbrack = \left\lbrack \begin{array}{r}
3\ \ \ \ \ \ \ \ \ 1 \
2\ \ \ \ \ \ 34
\end{array} ightbrack$
$\Rightarrow \ \ \ \ \ |AB| = \left\lbrack \begin{array}{r}
3\ \ 1 \
2\ \ 34
\end{array} ightbrack = 100$

Q. If $A = \left\lbrack \begin{array}{r} 3\ \ 5 \\ 2\ \ 0 \end{array} \right\rbrack$and $B = \left\lbrack \begin{array}{r} 1\ \ \ \ \ \ \ \ \ 17 \\ 0\ \ \ - 10 \end{array} \right\rbrack,$then $|AB|$ is equal to

Explanation

Reviewed by Dr. Abubacker

Want more practice?