- Inner numbers must match. So what that means is if you have a 4x4 and a 2x4, you can't multiply those together. You can't multiply them together because the 4 and 2 are not the same. Only multiply it when they are the same.
- Your answer will be the outer numbers. So if you were give a problem with the matrices 3x3 and 3x2 then your resulting matrix would be 3x2.
- If you can not multiply a matrix, it is called "not defined".
Example 1:
- First, you have to see what dimensions they are. Both of them are 2x2.
- Second, you have to see if the inner numbers match, which they do.
- So, you multiply 6x3+-5x2=8, 6x-1+-5x4=-26, 0x3+1x2=2, 0x-1+1x4=4.
- Final answer:
Example 2: 
- First, find the dimensions of each matrix. 2x2 and 3x2.
- The inner numbers are not the same.
- You are not able to multiply these matrices.
- Final answer: Not Defined.
:) Amber
No comments:
Post a Comment