Q. Express the radical using the imaginary unit, i.Express your answer in simplified form.±−25=±□
Recognize imaginary unit i: Recognize that the square root of a negative number involves the imaginary unit i, where i2=−1.±−25 can be rewritten as ±−1⋅25.
Separate square root of product: Separate the square root of the product into the product of square roots. ±−1×25=±−1×25.
Simplify square roots: Simplify the square roots.Since −1 is the imaginary unit i and 25 is 5, we have:±−1⋅25=±(i⋅5).
Combine terms for final answer: Combine the terms to express the final answer. ±i×5=±5i.
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