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Mathematics 16 Online
OpenStudy (anonymous):

Evaluate this determinant. please

OpenStudy (anonymous):

|-1 0 0| |0 2 -5| |0 5 0|

OpenStudy (amistre64):

determinate of a matrix eh..... isnt that were you corss out the top and down one side.... then flip sign and get an answer?

OpenStudy (amistre64):

(0+25) - (0+0) + (0+0) = 25.... maybe

OpenStudy (anonymous):

|-1 0 0| |0 2 -5| |0 5 0|

OpenStudy (amistre64):

i forgot to include the tops lol.... thats the vector cross product there

OpenStudy (amistre64):

-1(0+25) - 0(0+0) + 0(0+0) = -25

OpenStudy (amistre64):

does that help or do you need more?

OpenStudy (amistre64):

|a b c| |x y z| = a(yt-sz) -b(xt-rz) +c(xs-ry) is the determonate |r s t|

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