whats a2=a2
Identity?
I assume you mean a^2 = a^2, where a^2 = a squared.
The equation "a2 = a2" is an example of an identity equation, which means that it is true for all values of "a". This equation simply states that the square of any number "a" is equal to the square of the same number "a". In other words, any real number "a" raised to the power of 2 (or squared) is equal to itself squared.
To understand this, let's break it down step by step:
1. Start with the given equation: a2 = a2
2. The exponent of 2 represents squaring a number, so rewrite the equation as: a * a = a * a
3. Use the commutative property of multiplication, which states that changing the order of factors doesn't change the result. So the equation can be rewritten as: a * a = a * a
4. Now, use the reflexive property of equality, which states that any quantity is equal to itself. Apply this property to both sides of the equation: a * a = a * a
5. The equation is now true for any real number "a" because it is saying that the product of "a" and "a" is equal to the product of "a" and "a".
In conclusion, the equation "a2 = a2" is always true for any real number "a" because it states that the square of "a" is equal to the square of "a".