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Look Ma, no integrals! (Posted on 2006-05-02) Difficulty: 3 of 5
The professor wrote the differential equation f/f'=1 on the blackboard, and asked the students to solve it.

Everybody started working with the usual methods, except for a kid at the back of the class, who happened to have skipped that material, but was very bright.

Can you solve this equation without any integration?

See The Solution Submitted by Federico Kereki    
Rating: 3.7500 (4 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
serious problem with solutionBon2006-07-23 16:10:44
SolutionWorked it oute.g.2006-05-04 09:33:36
Some ThoughtsA few more solutionsowl2006-05-03 11:38:22
re(3): My (cryptic, mysterious, sibylline) Wayowl2006-05-03 08:52:39
Combined ApproachRichard2006-05-02 20:01:41
re(3): My (cryptic, mysterious, sibylline) WayRichard2006-05-02 17:16:01
Solutionre(2): My (cryptic, mysterious, sibylline) WayOld Original Oskar!2006-05-02 16:16:55
re: My (cryptic, mysterious, sibylline) WayRichard2006-05-02 16:06:36
Hints/TipsMy (cryptic, mysterious, sibylline) WayOld Original Oskar!2006-05-02 16:03:14
re: Stupidity TriesRichard2006-05-02 15:57:50
re(2): Observations and maybe solutionRichard2006-05-02 15:52:45
Some ThoughtsStupidity Triestomarken2006-05-02 15:45:43
Some Thoughtsre: Observations and maybe solutionFederico Kereki2006-05-02 15:41:30
Observations and maybe solutionRichard2006-05-02 14:08:20
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