Question about reducing a square root.

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SUMMARY

The discussion focuses on simplifying the expression \(\frac{\sqrt{(3+\sqrt{5})}}{\sqrt{(3-\sqrt{5})}}\) to \(\frac{(\sqrt{5} + 1)}{(\sqrt{5} - 1)}\). The key transformation involves recognizing that \(3 \pm \sqrt{5}\) can be expressed as \(0.5(6 \pm 2\sqrt{5})\). This simplification is crucial for understanding the manipulation of square roots in algebraic expressions.

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ozone
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IDK if this should be in the precalc section, but I was wondering how to reduce

[itex]\sqrt{(3+\sqrt{5})} / \sqrt{(3-\sqrt{5})}[/itex] to [itex](\sqrt{5} + 1) /(\sqrt{5} - 1)[/itex]
 
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Notice that 3±√5=0.5(6±2√5)=.5(5±2√5+1)=...

ehild
 

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