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Mathematics 11 Online
OpenStudy (smarty):

Find the inverse of the following matrix. [ 3 1] [ 4 2 ]

OpenStudy (anonymous):

very snap way of finding the inverse of a two by two matrix

OpenStudy (anonymous):

in english, switch the element in the main diagonal, take the opposite of the other two divide by the determinant

OpenStudy (anonymous):

Shortcut method is to take the determinant first i.e 3*2 - 4*1 = 6 - 4 = 2 |dw:1340078218843:dw| May be I am wrong... Please confirm it..

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