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Inverse Crossed Linear Power (Posted on 2023-10-14) Difficulty: 3 of 5
Determine all possible real x that satisfy this equation:

(1/x)x = 4x+1/16

See The Solution Submitted by K Sengupta    
Rating: 5.0000 (1 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Find my error | Comment 3 of 13 |
(In reply to Find my error by Larry)

Why would you expect differentiating to give the same solutions?  You are finding where the functions have the same instantaneous rates of change.  That's very different from the points of intersection.  


If you look at a graph you can see why your solution is between the two given by Charlie.

  Posted by Jer on 2023-10-15 11:49:28
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