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Matrix algebra  matrix equation 
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#1
Oct806, 10:18 AM

P: 103

A=(5, 4) I (1, 0)
(4,6) (0,1) Those are matrix by the way. How do I show A^2=11A18I? I know i'm overlooking something, but i don't know what. Any tips would be helpful 


#2
Oct806, 10:43 AM

P: 103

ah im sorry, I meant to put this in the question section, please move!



#3
Oct806, 10:43 AM

HW Helper
P: 3,220

Do you know how to multiply matrices? You may want to look at this link: http://www.purplemath.com/modules/mtrxmult.htm.



#4
Oct806, 02:00 PM

Sci Advisor
HW Helper
P: 9,396

Matrix algebra  matrix equation
Let me ask you this.
Let x=3. How do you show that x^2=2x+3? 


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