25 comments

  1. Can I have a question sir? Is it okay no matter what arrangements you have between the domain you know like example instead of [8,infinity) can it also be written [infinity,8) or not? I'm sorry I'm a dumn

  2. Thank God this helps so much.I understand it now. My teacher makes things much more complicated, talking about a bunch of scenarios and long math terms and stuff but this is a lifesaver for me and my test soon

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