Evaluate (complex solution)
\sqrt{7}i\approx 2.645751311i
Evaluate
\text{Indeterminate}
Real Part (complex solution)
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\sqrt{-7}
Subtract 35 from 28 to get -7.
\sqrt{7}i
Factor -7=7\left(-1\right). Rewrite the square root of the product \sqrt{7\left(-1\right)} as the product of square roots \sqrt{7}\sqrt{-1}. By definition, the square root of -1 is i.
\sqrt{-7}
Subtract 35 from 28 to get -7.
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