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June 18th, 2016, 04:52 AM   #1
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Math Focus: Enjoyed algebra for its utility
Simple Arithmetic that makes me bang my head

So I'm trying to study math again and looking at an algebra cheat sheet.

How does this make sense?

(a-b) / (c-d) = (b-a) / (d-c)

HELP!
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June 18th, 2016, 04:55 AM   #2
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$\dfrac{a-b}{c-d} = \dfrac{-1(a-b)}{-1(c-d)}= \dfrac{b-a}{d-c}$
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June 18th, 2016, 05:00 AM   #3
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Quote:
Originally Posted by skeeter View Post
$\dfrac{a-b}{c-d} = \dfrac{-1(a-b)}{-1(c-d)}= \dfrac{b-a}{d-c}$
Btw is that a program that you use to show the numbers?
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June 18th, 2016, 05:04 AM   #4
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Quote:
Originally Posted by cold4betbluff View Post
Btw is that a program that you use to show the numbers?
Latex math formatting is available on this site ...

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June 19th, 2016, 05:49 AM   #5
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Quote:
Originally Posted by cold4betbluff View Post
Btw is that a program that you use to show the numbers?
If you want to start learning LaTeX, a good way is to reply with quote to a post using LaTeX. You will then see the actual code in the reply box.

Also very helpful is

https://en.m.wikipedia.org/wiki/Wikipedia:LaTeX_symbols
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Last edited by JeffM1; June 19th, 2016 at 05:56 AM.
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