Practice problem
=== A3×4+B4×3=B4×3+A3×4A_{3\times4}+B_{4\times3}=B_{4\times3}+A_{3\times4}A3×4+B4×3=B4×3+A3×4
True
False
Not enough information is given.
Type a concept, like “slope” or “photosynthesis”.