Question

Matrices in the elements​

Answer 1

1. 
   `a_(14)`
2. a.

Explanation:

The numbering convention is presumed to be ...

`a_(row,column)`

1. There is only one row, and 0 is in the fourth column, so its coordinates are (row, column) = (1, 4). Its designator is
`a_(14)`.

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2. The relative values in the answer choices are ...

`a.\ a_(32)=2;a_(21)=4 \quad a_(32)<a_(21) \quad\text{answer}\\\\b.\ a_(32)=6;a_(21)=3 \quad a_(21)<a_(32)\\\\c.\ a_(32)=2;a_(21)=-1 \quad a_(21)<a_(32)\\\\d.\ a_(32)=1;a_(21)=0 \quad a_(21)<a_(32)`