If R is the set of all real numbers, what do the cartesian products `R xxR`and `R xxR xxR`represent?

Explanation

To solve the question, we need to understand what the Cartesian products \( R \times R \) and \( R \times R \times R \) represent in terms of geometry.

### Step-by-Step Solution:

1. **Understanding Cartesian Product**:
The Cartesian product of two sets \( A \) and \( B \), denoted \( A \times B \), is the set of all possible ordered pairs \( (a, b) \) where \( a \) is from set \( A \) and \( b \) is from set \( B \).

2. **Finding \( R \times R \)**:
...