Homework Help Thread

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Patrick MacFarlane

Commander-in-Chief of Russian Armed Forces TKR RP
This thread is open to anyone who might need it. There is bound to be someone in the ranks who can help you out with just about any subject. If no one will reply, PM me and I will do my best to help you with anything through middle and high school English, Math, Science, Social Studies/History. 

I'm going to start off this thread with me needing help with Calculus. 

I am in Calculus AB ( in the US, CalAB is Cal 1 and first parts of Cal 2) in high school and I have recently been having issues with understanding what is going on. I take great notes and I study them and look over them in class whilst I work but I just cannot comprehend them. The teacher moves at a good pace for the class, one person shouldn't always outweigh the many. We are currently covering Derivatives, Integration, Logarithmic functions, Natural Log (ln) and (e), and some other derivative things. I understand differentiation( mostly) but the "ln" and "e" and Integration in general is losing me. Can anyone help me out with this? 

 
I just finished my IB and will do the exam in about a month so I might be able to help you with integration (unless Calculus AB is completely different from IB if so, disregard everything I said)

For integration, I would say try to master integration by substitution unless you already covered that. Hard to explain how to do over text message but it makes integration much easier. Other than that, you need to post some example question so I could tell whether or not Calculus AB is completely different from IB

 
Integration is the opposite of differentiation, and the log function is just the inverse of the exponential function. If you understand one half then you can understand the other. Generally I'd just worry about learning the basic operations and identities and the bag of integration tricks, and don't get hung up on details of proofs and things like that.

When you look back on calculus one day it will all seem incredibly simple - sometimes you need to work with rates of change, or sum something up across an area or volume, so you turn it into a derivative or integral, and then use one of your memorized methods to go through the steps of solving it if you need to.

 
Milord said:
What the hell is calculus?
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The Devils Arithmetic

Take geometry and algebra, put them in a pot with meth, gangrene, and battery acid; then pour into a book shaped cake pan. bake at the Fires of Hell degrees for about 2000 years. Remove from the brimstone and you have modern calculus

 
ln stands for natural log ( log base e), and is the intergral of 1/x.

e is a special number, like pi, approx =  2.71828, e^x is the derivative and integral of its self

Integration is finding the area under the curve, and you are basically trying to invert a derivative, I would suggest that you make sure you know integration and derivative rules(I don't know what you need to know in AB, as I skipped straight into BC).

 
japan77 said:
Didn't mean to, I really didn't have much of a choice in taking BC (As my parents want me to take Math HL), and BC's first semester is just all AB anyways
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Jesus Christ, did you really take Math HL? In my school, we started with about 16 people doing HL now there's only around 4 left

 
Bear said:
Jesus Christ, did you really take Math HL? In my school, we started with about 16 people doing HL now there's only around 4 left
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Not yet, that's next year, at my school we usually have about 20 people go from start to finish.

 
japan77 said:
Not yet, that's next year, at my school we usually have about 20 people go from start to finish.
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Where the hell are you from?! 
 

And by the way, today in class we got into calculating volume of functions rotated about the x- and y-axis. The Disc and the Washer Methods made everything we have been learning for a month now magically make sense. I guess I just needed a way to apply it so that I could see the goal I was working toward. Now I'm not just going through motions, I know where the motions take me so I am taking steps toward a goal. I'm a visual and goal-oriented person so I guess I just needed to see an application. 

 
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