Practice problem
What is 19÷919\div919÷9?
2 R12 \text{ R}12 R1
−2 R1-2 \text{ R}1−2 R1
−1 R2-1 \text{ R}2−1 R2
1 R21 \text{ R}21 R2
Type a concept, like “slope” or “photosynthesis”.
