Sqrt (xy) = sqrt(x) sqrt(y) only for non-negative x, y. But why? What if x and/or y are negative? How should you proceed? - Quora
![What is the proof for $\sqrt{-a}\times\sqrt{-b}\neq\sqrt{ab},\text{ where }a,b\in \mathbb{R}$ - Mathematics Stack Exchange What is the proof for $\sqrt{-a}\times\sqrt{-b}\neq\sqrt{ab},\text{ where }a,b\in \mathbb{R}$ - Mathematics Stack Exchange](https://i.stack.imgur.com/RSP1a.png)
What is the proof for $\sqrt{-a}\times\sqrt{-b}\neq\sqrt{ab},\text{ where }a,b\in \mathbb{R}$ - Mathematics Stack Exchange
![Before I question, please note I will be using sqrt() as square root of something Kindly tell me how:For any - Maths - - 6435892 | Meritnation.com Before I question, please note I will be using sqrt() as square root of something Kindly tell me how:For any - Maths - - 6435892 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/discuss_editlive/4123606/2013_10_28_17_48_45/pic15.png)
Before I question, please note I will be using sqrt() as square root of something Kindly tell me how:For any - Maths - - 6435892 | Meritnation.com
![Why doesn't Mathematica simplify a square root of an expression that equals a square of a positive real? - Mathematica Stack Exchange Why doesn't Mathematica simplify a square root of an expression that equals a square of a positive real? - Mathematica Stack Exchange](https://i.stack.imgur.com/pdBzc.png)
Why doesn't Mathematica simplify a square root of an expression that equals a square of a positive real? - Mathematica Stack Exchange
![If a : b = c : d, then show that `sqrt(a^(2) + c^(2)) : sqrt(b^(2) + d^(2)) = (pa + qc) : (pb+qd)` - YouTube If a : b = c : d, then show that `sqrt(a^(2) + c^(2)) : sqrt(b^(2) + d^(2)) = (pa + qc) : (pb+qd)` - YouTube](https://i.ytimg.com/vi/bGOjyA8nDYs/maxresdefault.jpg)
If a : b = c : d, then show that `sqrt(a^(2) + c^(2)) : sqrt(b^(2) + d^(2)) = (pa + qc) : (pb+qd)` - YouTube
![Square Root Sign, Rules & Problems | What is the Square Root Sign? - Video & Lesson Transcript | Study.com Square Root Sign, Rules & Problems | What is the Square Root Sign? - Video & Lesson Transcript | Study.com](https://study.com/cimages/multimages/16/quotient_property.png)
Square Root Sign, Rules & Problems | What is the Square Root Sign? - Video & Lesson Transcript | Study.com
![algebra precalculus - Extract the Square Root of $ a^2-\left(\frac{\left(3a \sqrt{a}\right)}{2}\right)-\left(\frac{\left(3 \sqrt{a}\right)}{2}\right)+\frac{41a}{16}+1 $ - Mathematics Stack Exchange algebra precalculus - Extract the Square Root of $ a^2-\left(\frac{\left(3a \sqrt{a}\right)}{2}\right)-\left(\frac{\left(3 \sqrt{a}\right)}{2}\right)+\frac{41a}{16}+1 $ - Mathematics Stack Exchange](https://i.stack.imgur.com/43YEr.jpg)