Okay, so i'm just going to kind of explain the things i don't understand..
1. So, let me start with the improper integrals. I dont understand how to plug in certain things to it? or what you do.
2. Will lo'hopitals rule work for all limits?
3. How do you know if a problem with a squareroot should be solved by substitution, bi-parts..etc.
4. What is the best way to solve a limit.
Okay, so lets get to explaining a little.
When you do the thing with the chart on page A21, you should be aware to make sure all of the important things are being substituted for; as well as integrating if it still has an integral symbol in the equation!
Sorry this blog isn't very informative..but it helps me more when poeple answer my questions then saying what i know. Hopefully someone can help!
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L'Hopital's rule ONLY works if you get indeterminate. this incldes 0/0, inf/inf, etc. Once you get this you can do L'Hopital's rule.
ReplyDeleteThe best way to solve a limit. So if I'm given a limit to a number, plug in the number. then if you get something over zero. try to factor. Then L'Hopital it if it applies. If the limit goes to infinity, you're going to first check your degrees(degree rules)...
Hope this helps some
if it's a sqrt of a perfect square +/- x^2, then it's probably trig sub.
ReplyDeleteSOLVE A LIMIT.
ReplyDeletePlug in the x value,
if the bottom comes out to zero, you can either plug it into your calculator or factor or do the table or L'Hopital rule it.