Question

When solving an inequality that is less than or equal to 0 or greater than or equal to 0 and 0 is in the interval. Does zero have a curve or smooth bracket?

Answer 1

For example \[ x^3-x ge 0 \] with solution: [-1,0) U (1, infinity) Does zero have a parenthesis ) or bracket ] ?

Answer 2

if 0 is included in the solution such as x >= 0 then you use [0, infinity)
if 0 is NOT included in the solution such as x > 0, then you use (0, infinity)

Answer 3

use the bracket only if the number is included.. otherwise use ( or )

Answer 4

@dpaInc
you are really smart!!! :)

Answer 5

awww... you're making me turn pink!!!

Answer 6

if i'm a girl, will it change what you think of me?

Answer 7

nope... i don't discriminate people. i am not sexist.
but seriously ur are really really samrt no mater what gender u r!! :D

Answer 8

I still don't understand though...

Answer 9

Can you say yes or no first then explain?

Answer 10

I know you use the square bracket if the number is included but I want to know if I am able to use a square bracket on 0?

Answer 11

Zero is also a number, so the same rule applied!

Answer 12

Okay, thank you that is all I wanted to know...

Answer 13

:)