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Find the value of

\[\left(\sqrt{7\sqrt{3\sqrt{7\sqrt{3\sqrt{\cdots}}}}} \right)^3
- \left(\sqrt{3\sqrt{7\sqrt{3\sqrt{7\sqrt{\cdots}}}}} \right)^3.\]

 Jan 29, 2021
 #1
avatar+32281 
+3

As follows:

 

 Jan 29, 2021
 #2
avatar+113657 
0

That is really neat Alan   laugh

Melody  Jan 30, 2021

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