perplexus.info :: Just Math : Triple seven power

Triple seven power (Posted on 2023-04-21)

7a + 1/(7a)= sqrt(98)

How much is (a^777) + 1/(a^777)?

No Solution Yet Submitted by Ady TZIDON

Rating: 3.0000 (3 votes)

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re(2): Providing corrected text. SORRY | Comment 8 of 14 |

(In reply to re: Providing corrected text. SORRY by Kenny M)
The source (old Soviet olympiad) couldn’t be located, but luckily enough I have remembered the answer and through reversed engineering i am able to provide the final errorless text: 

If 7a + 1/(7a) = sqrt(98) 
 how much is a^777 + 1/777 ?
Edited on April 22, 2023, 1:12 am

Posted by Ady TZIDON on 2023-04-22 00:28:29

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