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#1 2013-05-28 04:41:06

mom
Member
Registered: 2012-04-25
Posts: 94

Find the entry in the second row, first column of AB

Please let me know if I did this correctly.

I have Let A = [1 4] and B = [3 -2]. find the entry in the second row, first column of AB.
                       2 3                4  6

I multiplied A and B to get AB and the number I got for the second row, first column of AB was 18. Did I do this correctly?

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#2 2013-05-28 05:25:57

bob bundy
Moderator
Registered: 2010-06-20
Posts: 6,538

Re: Find the entry in the second row, first column of AB

That looks good to me.  smile

Bob


You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei

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#3 2013-05-28 05:47:58

mom
Member
Registered: 2012-04-25
Posts: 94

Re: Find the entry in the second row, first column of AB

Bob,

nice! thanks so much for checking it for me.

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