Practice problem
Let AAA and BBB be matrices. If A3×6A_{3\times6}A3×6 and AB3×7AB_{3\times7}AB3×7 what is the size of BBB?
7×37\times37×3
3×73\times73×7
6×76\times76×7
7×67\times67×6
These matrices can't be multiplied.
Type a concept, like “slope” or “photosynthesis”.
