Question 312538
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I'm guessing that you mean:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4\sqrt{10}\sqrt{40}]


and that you want to simplify the expression.


Note that, in general,


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \sqrt{A}\sqrt{B}\ =\ \sqrt{A\,\cdot\,B}]


Your expression becomes:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 4\sqrt{400}\ =\ 4\,\cdot\,20\ =\ 80]



John
*[tex \LARGE e^{i\pi} + 1 = 0]
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