What is $| | < - 7, 31, - 3 > - < 4, 4, - 1 > | |$ $|| <-7, 31, -3 > - < 4 , 4, -1 > ||$ ?

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Answer 1 · 2018-01-08T16:04:31

The answer is $= 29.2$ $=29.2$

Start by calculating

$< - 7, 31, - 3 > - < 4, 4, - 1 > = < - 11, 27, - 2 >$ $<-7,31,-3> - <4,4,-1> = <-11, 27, -2>$

The modulus is

$| | < - 11, 27, - 2 > | | = \sqrt{{(- 11)}^{2} + {(27)}^{2} + {(- 2)}^{2}}$ $||<-11, 27, -2>|| = sqrt((-11)^2+(27)^2+(-2)^2)$

$= \sqrt{854}$ $=sqrt(854)$

$= 29.2$ $=29.2$

What is ||<−7,31,−3>−<4,4,−1>|||| <-7, 31, -3 > - < 4 , 4, -1 > ||?