Calculus project. I'm freaking out here.

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Calculus project. I'm freaking out here.

Postby Mangafanatic » Thu Nov 16, 2006 1:09 pm

It's ME again! CAA's favorite math inept moderator!

So, I'm doing this calculus project for tommorrow and I'm completely stuck! Please, somebody help me. :(

So, I'm supoosed to find approximations to the regions given below using both LHS and RHS:

1. The area under the curve y=1/[square root off cx] between x=0.1 and x=20. Use n=50 and n=1000.

Now, if any of you are familiar with "derive" from your calculus days, it's a math calculating program released by Texas Instruments. That's what I'm using to do the project.
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Postby Technomancer » Thu Nov 16, 2006 2:04 pm

Is it imperative that you use the TI calculator? Could you do the integration some other way (eg. Riemann sum, etc), or could you write a simple BASIC program? You can also check your answer by calculating the definite integral of f(x). Hint: remember that d/dx [x^a]=(a)*x^(a-1), where a is not necessarily an integer.
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Postby Warrior4Christ » Thu Nov 16, 2006 10:05 pm

(I'm not sure if this is too late..)
I'm not quite sure what the problem you have is... do you want help with using the program? (Sorry, I can't help you there, but it seems like all you'd need to do is enter the equation, the endpoints, n, and the LH/mid/RH points.) Or do you need help in understanding how they're calculated manually?
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