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forum.virtualchallengemeets.com • View topic - please help!!!

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please help!!!

I can do anything, as long as I have my handy-dandy Calculator.
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please help!!!

Postby Itryatmath » Mon Mar 19, 2012 8:34 pm

I can't figure out this one geometry/calculus question on one of the Calculator tests and its bugging me! Its the TMSCA state test # 59. They basically show the area under the curve from x=1 to x=5 is 4, and the equation of the curve is y= (cos(1/x)) / (Ax^2). They ask us to find the value of A. So I know that basically we know the definite integral of the equation from 1 to 5 is 4, so we just need to integrate and solve for A but im not sure how to do that? Would we do integration by parts or what? please help!!
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Re: please help!!!

Postby nsguy1350 » Mon Mar 19, 2012 9:18 pm

Year please?
2013 District 1/Region:
NS - 319/355
MA - 340/332
CA - 294/287
SC - 344/292
CS - 212/124 (fail)
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Re: please help!!!

Postby Itryatmath » Mon Mar 19, 2012 9:44 pm

2012 haha this year :)
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Re: please help!!!

Postby Fox » Mon Mar 19, 2012 10:19 pm

What calculator are you using? It's a pretty easy solver for 89 and Nspire.
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Re: please help!!!

Postby Itryatmath » Mon Mar 19, 2012 10:55 pm

I have an 84. Could you do this by hand or using that?
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Re: please help!!!

Postby 88bobcat » Tue Mar 20, 2012 1:52 pm

[unparseable or potentially dangerous latex formula]
[unparseable or potentially dangerous latex formula]

[unparseable or potentially dangerous latex formula]
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