Find the product :
`(-20)xx(-1)`

Answer

To find the product of \((-20) \times (-1)\), we can follow these steps:

### Step 1: Write down the expression
We start with the expression:
\[ (-20) \times (-1) \]

### Step 2: Identify the signs
Here, we have two negative numbers: \(-20\) and \(-1\).

### Step 3: Apply the rule for multiplying negative numbers
When we multiply two negative numbers, the product is positive. This is a fundamental rule in mathematics.

### Step 4: Calculate the product
Now, we can calculate the product:
\[ 20 \quad (\text{since } -20 \times -1 = 20) \]

### Final Answer
Thus, the product of \((-20) \times (-1)\) is:
\[ \boxed{20} \]

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