What is the cross product of $<7, 5 ,6 >$ and $<3 ,5 ,-2 >$ ?

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What is the cross product of $<7, 5 ,6 >$ and $<3 ,5 ,-2 >$ ?

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Answer 1 · 2016-11-07T02:32:57

The cross product of given coordinates is
$-4(10hati-8hatj-5hatk)$ .

Explanation:

Let us consider $vecA=(7, 5, 6), vecB=(3, 5, -2)$ as $vecA= 7hati+5hatj+6hatk$ , $vecB=3hati+5hatj-2hatk$
$vecAxxvecB = hati(-10-30)-hatj(-14-18)+hatk(35-15)$
$=> -40hati+32hatj+20hatk$
$:. vecAxxvecB = -4(10hati-8hatj-5hatk)$ .

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What is the cross product of $<7, 5 ,6 >$ and $<3 ,5 ,-2 >$ ?

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What is the cross product of $<7, 5 ,6 >$ and $<3 ,5 ,-2 >$ ?