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Mathematics 8 Online
OpenStudy (anonymous):

find the inverse of the matrix if it exists [3, -1] [-10 ,9] solve the system by using a matrix equation 2x-3y=3 5x-7y=9

OpenStudy (anonymous):

@Directrix can you help?

OpenStudy (anonymous):

@myininaya

OpenStudy (anonymous):

@Luis_Rivera @RadEn @Zarkon

OpenStudy (raden):

first, determine the determinan of matrix [3, -1] [-10 ,9]

OpenStudy (anonymous):

37

OpenStudy (raden):

3 * 9 - (-1)(-10) = ...

OpenStudy (anonymous):

oh i thought you added them?

OpenStudy (anonymous):

17 then?

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