i am always confused when i face an eqn like n-1<0
should i take n<1 or n>1
inequalities
This topic has expert replies
- Birottam Dutta
- Master | Next Rank: 500 Posts
- Posts: 342
- Joined: Wed Jul 08, 2009 8:50 am
- Thanked: 214 times
- Followed by:19 members
- GMAT Score:740
if n-1<0 then n<1.
Can't be n>1.
Can't be n>1.
Folks please check this out
https://www.youtube.com/watch?v=H7p56NzAVKc
https://www.youtube.com/watch?v=H7p56NzAVKc
-
- Master | Next Rank: 500 Posts
- Posts: 435
- Joined: Wed Nov 16, 2011 7:27 am
- Thanked: 48 times
- Followed by:16 members
For adding and subtracting inequalities, just do the same thing you would do for algebra with an equal (=) sign, and keep the inequality sign unchanged. So...kashishh wrote:i am always confused when i face an eqn like n-1<0
should i take n<1 or n>1
n-1<0 is just;
n<1
Just move the 1 over like you would regularly do:
n-1=0
n=1
However, be careful with multiplication and division. You have to flip the sign if you multiply or divide by a negative number.