1. The problem is to multiply 1 by 2.
2. The multiplication formula is $a \times b = c$, where $a$ and $b$ are numbers and $c$ is their product.
3. Here, $a = 1$ and $b = 2$.
4. Multiply the numbers: $1 \times 2 = 2$.
5. So, the answer is 2.
Multiply 1 2 9Dfacc
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.