Q. Express the radical using the imaginary unit, i.Express your answer in simplified form.±−77=±□
Recognizing the Imaginary Unit: First, we recognize that the square root of a negative number involves the imaginary unit i, where i2=−1. We can rewrite the expression ±−77 by factoring out −1 from under the radical to separate the imaginary unit from the real number.±−77=±−1×77
Factoring Out −1: Next, we can express the square root of −1 as i, and then take the square root of the remaining positive number, which is 77.±−1×77=±i×77
Expressing the Square Root of −1: Since 77 is not a perfect square, we cannot simplify the square root of 77 any further. Therefore, the expression remains as is.±i⋅77=±i⋅77
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