Find the cube of (i) 3 (ii) 9 (iii) 13.

Answer

To find the cubes of the numbers 3, 9, and 13, we will multiply each number by itself three times.

### Step-by-Step Solution:

**(i) Finding the cube of 3:**
1. Start with the number 3.
2. Multiply 3 by itself:
\[ 3 \times 3 = 9 \]
3. Now, multiply the result (9) by 3 again:
\[ 9 \times 3 = 27 \]
4. Therefore, the cube of 3 is:
\[ 3^3 = 27 \]

**(ii) Finding the cube of 9:**
1. Start with the number 9.
2. Multiply 9 by itself:
\[ 9 \times 9 = 81 \]
3. Now, multiply the result (81) by 9 again:
\[ 81 \times 9 = 729 \]
4. Therefore, the cube of 9 is:
\[ 9^3 = 729 \]

**(iii) Finding the cube of 13:**
1. Start with the number 13.
2. Multiply 13 by itself:
\[ 13 \times 13 = 169 \]
3. Now, multiply the result (169) by 13 again:
\[ 169 \times 13 = 2197 \]
4. Therefore, the cube of 13 is:
\[ 13^3 = 2197 \]

### Final Answers:
- The cube of 3 is **27**.
- The cube of 9 is **729**.
- The cube of 13 is **2197**.