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OpenStudy (mtalhahassan2):

need help

OpenStudy (mtalhahassan2):

Show that the vectors (-1,2,3),(4,1,-2), and (-14,-1,16) do not lie on the same plane. b. Show that the vectors (-1,3,4), (0,-1,1), and (-3,14,7) lie on the same plane, and show how one of the vectors can be written as a linear combination of the other two.

OpenStudy (mtalhahassan2):

@dazzling_nightmares

OpenStudy (mtalhahassan2):

@Astrophysics

OpenStudy (wolfboy):

this is the English section

OpenStudy (mtalhahassan2):

@MarziaJackson$

OpenStudy (mtalhahassan2):

@zepdrix

OpenStudy (safyousuff97):

@baru

OpenStudy (baru):

you can use cross product. lets call the three vectors A, B and C if they all lie in the same plane then: A X B = k(B X C) (where k is some constant)

OpenStudy (mtalhahassan2):

@baru can you please explain little more!!

OpenStudy (baru):

do you know "cross product"?

OpenStudy (baru):

@MTALHAHASSAN2

OpenStudy (mtalhahassan2):

yes

OpenStudy (baru):

ok, do you know that cross product of two vectors, gives another vector perpendicular to the plane containing the two vectors?

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