SOLUTION: For what values of x is the expression sqrt(4x-x^2) defined as a real number.
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Question 249427
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For what values of x is the expression sqrt(4x-x^2) defined as a real number.
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checkley77(12844)
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sqrt(4x-x^2)
SQRT[X^2-4X]
SQRT[X(X-4)]
X=0 & X=4