2√2...can someone tell me what that expression means
Certainly! The expression 2√2 represents a mathematical operation called square root and multiplication. Let me break it down for you.
To understand this expression, we first need to know what the square root is. The square root (√) of a number is a value that, when multiplied by itself, equals the original number. In this case, the number inside the square root is 2.
So, when we calculate √2, we find the number that, when multiplied by itself, equals 2. The square root of 2 is an irrational number, which means it cannot be expressed as a simple fraction or a decimal that ends. Instead, it goes on infinitely like: √2 ≈ 1.41421356237...
Now, let's move on to the multiplication part of the expression. When we multiply 2 by the square root of 2 (√2), we simply take 2 and multiply it by the value we found for √2. So, 2√2 would be equivalent to 2 multiplied by √2, or 2 * √2.
In summary, the expression 2√2 means multiplying the number 2 by the square root of 2.