Matrices

[nbalakers24]

hi,

i need help on this question, i keep getting it wrong.



and also how do we find the inverse of matrices using the cas 89?

the book teaches a diff calculator

thanks 

[plato]

Can you show what you are doing to get it wrong?

[nbalakers24]

Week 1 x [6;1]

its wrong for A) but right for B)

[plato]

Question a) seems a little confusing but I think it means to find the matrix that is the sum of the four original matrices. I get the following answer for what I think question a) is asking.



The matrix does not seem to get used until question b)

[nbalakers24]

ohhhhhhhhhhhhhhhhhhhh :crazy2:

thanks!

[nbalakers24]

how do we find the inverse of matrices using the cas 89?


thanks!

[Gloamglozer]

how do we find the inverse of matrices using the cas 89?


thanks!

Type in the matrix using the square brackets in Home.  Then after that, type in "^-1", ie. "carat negative one".

Also, this is assuming you know how to type in matrices in Home.

[nbalakers24]

ohh

thanks!

[Gloamglozer]

Your welcome.