a=2i-j+k ; b =3k-i-2j find (2a-b, 2a+b)

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наити[2a-b, 2a+b] где a=2i-j+k ; b = 3k-i-2j

Guest Dec 15, 2014

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Best Answer

a=2i-j+k ; b =3k-i-2j find (2a-b, 2a+b)

$$\small{\text{
$
\begin{array}{rcl}
2a-b &=& 5i-k\\
2a+b &=& 3i-4j+5k
\end{array}
$
}}$$

heureka Dec 16, 2014

heureka · Answer 1 · 2014-12-16T06:08:39

a=2i-j+k ; b =3k-i-2j find (2a-b, 2a+b)

$$\small{\text{
$
\begin{array}{rcl}
2a-b &=& 5i-k\\
2a+b &=& 3i-4j+5k
\end{array}
$
}}$$