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Mathematics 9 Online
OpenStudy (anonymous):

Let a=<3, 2, -4> and b=<2, -5, 1>. Find axb. I got sqrt(806) as the answer but I'm not sure if this is right. Please check my answer by showing the work.

OpenStudy (anonymous):

is that the cross product?

OpenStudy (anonymous):

I think so. This is Calculus 3 problem, is it?

OpenStudy (anonymous):

cross product of two vectors is always another vector. it can't be just a number(scalar).

OpenStudy (anonymous):

assuming you are in a Cartesian plane you need to use a determinant of a matrix.

OpenStudy (anonymous):

How do I do that?

OpenStudy (anonymous):

|dw:1366854528148:dw|

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