S^2
The expression S^2 represents S raised to the power of 2
The expression S^2 represents S raised to the power of 2.
Raising a number to the power of 2 means multiplying it by itself. So, if S represents a number, then S^2 would be the square of that number.
For example, if S = 3, then S^2 would be 3^2 = 3 x 3 = 9.
Similarly, if S = -4, then S^2 would be (-4)^2 = (-4) x (-4) = 16.
In general, when you square a number, the result is always positive or zero. This is because when you multiply a negative number by itself, the negative signs cancel out, resulting in a positive product.
So, if S is any real number, S^2 will always be non-negative.
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