Find the multiplicative inverse of the following.
` -1 `

Answer

To find the multiplicative inverse of -1, we need to follow these steps:

### Step 1: Understand the concept of multiplicative inverse
The multiplicative inverse of a number \( x \) is another number \( y \) such that when you multiply \( x \) and \( y \), the result is 1. This can be expressed mathematically as:
\[ x \times y = 1 \]

### Step 2: Set up the equation
Let’s denote the number we are finding the multiplicative inverse for as \( x = -1 \). We need to find \( y \) such that:
\[ -1 \times y = 1 \]

### Step 3: Solve for \( y \)
To find \( y \), we can rearrange the equation:
\[ y = \frac{1}{-1} \]

### Step 4: Calculate \( y \)
Now, we can compute:
\[ y = -1 \]

### Conclusion
Thus, the multiplicative inverse of -1 is:
\[ \text{Multiplicative Inverse of } -1 = -1 \]