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Posted: 10/3/2014 8:33:11 PM EST
[Last Edit: 10/3/2014 10:29:42 PM EST by Roebuck]



Did you draw that with a crayon?


Seriously... unTex the Mex..

Do you know why an AC waveform is called a sine wave?



Attending college in Florida for starters.


"tens of thousands of rounds of military fullmetaljacketarmorpiercingcopkillerchildkillingcangothroughanengineblockhollowpointdumdumkillkilling ammunition" 57 Strat


Yea, well screw that shit.
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Code name " Gyro "

Clearly you are doing calculus wrong.
Next question. 




shouldn't the derivative of a sine be cosine. been a while since I did calc



Preferred 4 out of 5 in blind taste tests
WA, USA

for starters the derivative of sin 3x is 3 cos 3x

We contemplate eternity under the vast indifference of heaven

Y=mx+b is the equation you want.
It seems that you found m. Now all you need to do is find b such that y is true when x is the given value. 

"Hmmm let me see. Traffic is stopped up ahead, it is raining and visibility is poor, and there is a lot of traffic coming the other way . . . Solution: MORE GAS and bad techno music!" CitadelSC



Ok, you want to use your calculated slope and the point they provide in conjunction with the point slope formula for a line for part a.
Part B you can easily rule out the two lines that are not tangent to the curve. To decide on the answer plug in 0 for x and know that the sine of 0 is 0. 


The limit of Derp as Feinstein approaches gun control is infinity.




Fuck Webassign.



The derivative of sin(3x) = 3cos(3x)
[I think you show it as 3sin(3x) if I am reading your solution correctly.] So the slope m of your tangent at the point y=pi/4 is 3cos(3pi/4), and it must go through the given point, which you can plug into m(y2y1)=x2x1 and solve for y2 in terms of x2. But I don't have a calculator handy. I think the top right graph is the right answer because it goes trough the given point and is tangent to the curve at that point. Not sure. 





You put 2 d's in the same ( ) and all you put between them was a cheap paper plate..


Seriously... unTex the Mex..

What are you doing wrong?
You're taking fucking calculus you nut bag. And working on it on a Friday night for crying out loud. Go get drunk and get laid already ... Youth...wasted on the young Oh yeah the answer is J over D*I 

"Quick, what's the secret to those fake tears?"
"The Three Stooges are all dead" 
The original equation does not have an amplitude of 3, so graph a is incorrect. If so, it would be 3sinx. Graph b is the only other one that has a tangent line to the graph at pi/4, so graph b it is
And the derivative of the sine function is cosine
And you write d/dx in front of the expression you are differentiating.


Don't be so openminded that your brains fall out.
General education should not be mere training of the hands to work, but training of the mind to properly reason. http://www.welltrainedmind.com/classed.php 
Got A's in calc years ago. Never even used it once within my profession. Statistics I only needed one class and I need it for every damn thing. Go figure.
OP, good luck. It comes to you once you get the basics down. 

WTF is up with this bullshit antibayo lug crap. Was there a group of irrate japanese guys bonzai charging disabled school children and puppies that I wasn't aware of?

Originally Posted By MRW:
The original equation does not have an amplitude of 3, so graph a is incorrect. If so, it would be 3sinx. Graph b is the only other one that has a tangent line to the graph at pi/4, so graph b it is And the derivative of the sine function is cosine And you write d/dx in front of the expression you are differentiating. View Quote turned out my answer was correct. i just forgot to put a negative in front, and devided by 3 instead of 2 because of a type. when you pull ou the d/dx you bring it to the front to multiply 


Originally Posted By Roebuck:
http://i1270.photobucket.com/albums/jj606/roebuck1020/calc_zps5e94c372.png http://i1270.photobucket.com/albums/jj606/roebuck1020/work34_zps9bfbf66c.png View Quote Do you even rise over run, bro? 


It's been over 30 years since I aced calculus. I've managed to forget all of it.



This thread is so full of AIDS and EBOLA.
Fuck this thread. 


mauhahahah



Originally Posted By Roebuck:
Edit I bring you a new problem. http://i1270.photobucket.com/albums/jj606/roebuck1020/Capture_zps453fa638.png View Quote its pretty obvious the tangent line is going to be negative... you loose points for problem awareness there... 


word i just looked it up ... use the distance formula with limted of the function as x approches zero...



Mastering Physics is worse. For WebAssign always do the "Watch It," the guy is very helpful.
Also the slope is negative and very small 


what of that did you input?



for your new problem:
Take derivative with respect to x and make sure to chain rule the y^2 (that is, d[y^2]/dx = 2y*y') solve for y' with (x,y)=(4,2) (you get 2/11) solve y = (2/11)x+b for b with (x,y)=(4,2) The end. OP, please take note: the process for these problems is ALWAYS the same. 1) take derivative 2) solve for y' 3) solve for b. It doesn't matter what the equations are. ETA: InfiniteGrim: he put y=2 as his answer. 


Hmm. I've used those web sites, but never for math. The green box confused me, not sure if that is help, answer, or what.




Ah ok, and reading the thread, when the question was changed confused me. I was wondering how in the hell anyone thought y=2 would be tangent to that.



When you're done with his hw could y'all do mine?


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Umm, potatoe, what do I win!


This world would be a better place to live if it weren't for people!

AWARD: Horny and requires assistance 24/365
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I'd do it!
Originally Posted By HK45USER:
A seXy potato http://images.sodahead.com/polls/001559173/301659831_sexy_potato_answer_2_xlarge.jpeg View Quote View All Quotes View All Quotes Originally Posted By HK45USER:
Originally Posted By cda97:
Umm, potatoe, what do I win! A seXy potato http://images.sodahead.com/polls/001559173/301659831_sexy_potato_answer_2_xlarge.jpeg 

This world would be a better place to live if it weren't for people!

Is there a Common Core version of the question?


In GOD We Trust....Everbody else keep your damn hands where I can see them.

Holy shit. They give you 50 tries before you don't get credit? I was lucky if I got 3, with only 2 tries for the whole thing.



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