What is the greatest possible integer value of x for which square root of x-5 is an imaginary number? A) 3 B) 4 C) 5 D) 6

Question

Harley

Mathematics

12 October, 17:09

What is the greatest possible integer value of x for which square root of x-5 is an imaginary number? A) 3 B) 4 C) 5 D) 6

+5

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Karma Mills · Answer 1

Your answer will be 4, Any x larger than 4 would result in a value of 0 or a positive number. These values have real square roots. 4 is the largest number for x such that x - 5 is a negative number, which yields an imaginary number once the square root is taken.