
PreCalculus PreCalculus Math Forum 
 LinkBack  Thread Tools  Display Modes 
February 14th, 2019, 09:58 PM  #1 
Newbie Joined: Feb 2019 From: Ohio Posts: 1 Thanks: 0  Are some parts unnecessary and how can I identify them?
Hello everyone. I spent a few months slowly relearning trig on Khan academy and near the end found the things it was teaching to be so obscure and niche that I couldn't imagine what kind of practical application they would have. Obviously, I am sure some field of science must use those, but I can’t imagine it’s worth everyone learning. I assume the Pareto principal must also apply to math and I am wondering how I can Identify the most useful parts of any field in math. That’s not to say I only want to learn 20%, but I would definitely like to avoid the 20% that is extremely esoteric and unlikely to ever be useful for me. Currently, I am learning precalc; any suggestions? Thanks!
Last edited by skipjack; February 15th, 2019 at 12:46 AM. 
February 15th, 2019, 09:38 AM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,590 Thanks: 1434 
I suppose one way is to take a first guess at what you think you can ignore and ignore it and continue on with your coursework. If at some point you find you were mistaken, and you do need that info to continue you can always go back to it. If Khan academy really has 20% useless info, well shame on them. I do find that number a bit hard to believe. 
February 15th, 2019, 12:31 PM  #3 
Senior Member Joined: Oct 2009 Posts: 886 Thanks: 341 
Can you give an example of things on khan academy that are obscure and niche?


Tags 
identify, parts, unnecessary 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Could someone please identify the name of this equation?  Tails Prower  Math  4  October 13th, 2015 04:29 PM 
n broken sticks produces 2n parts. Probability about some ways to bind that parts.  beesee  Probability and Statistics  3  January 20th, 2015 11:12 AM 
Identify this constant?  brunojo  Number Theory  5  March 12th, 2009 06:51 AM 
Identify the Conic  symmetry  Algebra  1  August 20th, 2007 06:45 PM 