0We know that square of +2 is 4 and square of -2 is also 4. But is the square root of 4 compounds to -2?
Lets look:
We should know that √ (square root) operator is a positive operator i.e it outputs the principal square root. Principal square root is always positive.
Moreover the domain of square root function is a positive number. So a positive number's square root cannot be negative.
Moreover if we say,
Let x=√4. Find x.
Here we should see that the equation has degree as 1 and hence cannot result two roots ( no of roots of an equation are maximum equal to the degree of the equation)
The equation x=√4 has degree as one. Hence will have one solution or one root, which is +2 not -2.
