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Evaluate (complex solution)
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Real Part (complex solution)
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\frac{\sqrt{-1}}{\sqrt{8}}
Rewrite the square root of the division \sqrt{-\frac{1}{8}} as the division of square roots \frac{\sqrt{-1}}{\sqrt{8}}.
\frac{i}{\sqrt{8}}
Calculate the square root of -1 and get i.
\frac{i}{2\sqrt{2}}
Factor 8=2^{2}\times 2. Rewrite the square root of the product \sqrt{2^{2}\times 2} as the product of square roots \sqrt{2^{2}}\sqrt{2}. Take the square root of 2^{2}.
\frac{i\sqrt{2}}{2\left(\sqrt{2}\right)^{2}}
Rationalize the denominator of \frac{i}{2\sqrt{2}} by multiplying numerator and denominator by \sqrt{2}.
\frac{i\sqrt{2}}{2\times 2}
The square of \sqrt{2} is 2.
\frac{i\sqrt{2}}{4}
Multiply 2 and 2 to get 4.
\frac{1}{4}i\sqrt{2}
Divide i\sqrt{2} by 4 to get \frac{1}{4}i\sqrt{2}.