Looks like you're given an equality between two matrices,

Two matrices are equal if the entries in the same positions (row and column) are equal. This means

We can ignore the last one, since it's clearly true. For the remaining, we get



I'll work on the first one soon....
B is the answer hope this helped u
1/15 * 7
7/15 this is the answer in fraction form
The answer is 7 ^39 in the field.
Please correct me if I'm wrong!! :)