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Use the imaginary number ii to rewrite the expression below as a complex number. Simplify all radicals. −−55-\sqrt{-55}

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Full solution

Q. Use the imaginary number ii to rewrite the expression below as a complex number. Simplify all radicals. −−55-\sqrt{-55}
  1. Use of Imaginary Unit: Now, we know that −1\sqrt{-1} is the imaginary unit ii. So we can write −−55-\sqrt{-55} as −i⋅55-i \cdot \sqrt{55}.
  2. Simplification of Expression: We can't simplify 55\sqrt{55} any further since 5555 is not a perfect square. So, the expression stays as −i×55-i \times \sqrt{55}.

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