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} $ }}$