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Since You Cannot Take the Square Root of a Negative

Question 45

Multiple Choice

Since you cannot take the square root of a negative number, which of the following could you use to find the square root of the variable x?

A) Math.sqrt(x*x) ;
B) Math.sqrt((int) x) ;
C) Math.sqrt(Math.abs(x) ) ;
D) Math.abs(Math.sqrt(x) ) ;
E) Math.sqrt(-x) ;

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