SOLUTION: I'm sorry for asking this question once again, but the way I typed up the question did not properly explain that it was written as m_2,2 not m_22. Find m

SOLUTION: I'm sorry for asking this question once again, but the way I typed up the question did not properly explain that it was written as m_2,2 not m_22. Find m_(base)2,2 of the matrix

Question 985883: I'm sorry for asking this question once again, but the way I typed up the question did not properly explain that it was written as m_2,2 not m_22.
Find m_(base)2,2 of the matrix:
[ 3 2 7
1 -2 4
5 3 -1]
Thank you kindly for your help and time.
Answer by ikleyn(52788) (Show Source): You can put this solution on YOUR website!

m[2,2] = -2.

--------------------------------------------

When people use matrices, they may use different (various, distinct) notations for their elements, like m[2,2], , .

All these notations mean the same: the element of the matrix located in the intersection of the second row (first index 2) and the second column (the second index 2).

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