anonymous
  • anonymous
what am i doing wrong here ? Let "picture" Use your calculator to find F″(1)
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
1 Attachment
anonymous
  • anonymous
im getting 2
anonymous
  • anonymous
but these are my only answer choices 12 6 4 1/9

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
F'(x) = ln(9x^2) F"(x) = 2/x F"(1) = 2 what am i doing wrong?
anonymous
  • anonymous
@abb0t @freckles @UsukiDoll
UsukiDoll
  • UsukiDoll
~_O uhhhhh.. integration is always anti-derivatives no matter what... something is off.
anonymous
  • anonymous
do you hink the answer choices are somehow wrong?
UsukiDoll
  • UsukiDoll
ah... try taking the anti-derivative.... then f(b)-f(a) which is f(3x)- f(1) and then evaluate when x = 1?!?!?!!?!?!!!!!!!!!!!!!!!!!!!!!!!!!! this is one strange question
UsukiDoll
  • UsukiDoll
because whenever I see the integral sign... it's always antiderivative.
UsukiDoll
  • UsukiDoll
@ganeshie8 any ideas? O_o
anonymous
  • anonymous
hey @Astrophysics while i have you here can you give me the link to the cool openstudy extension i managed to lose the question where you provided the links :/
Astrophysics
  • Astrophysics
Hey sorry I was away, yeah sure just send me a message of what exactly you want. since F'(x) = f(x) we have\[F'(x) = \int\limits_{1}^{3x} \ln(t^2) dt\] \[F'(x) = \ln(9x^2) - \ln(1)\] F''(x) = f'(x) \[F''(x) = \frac{ 2 }{ x }\] \[F''(1) = 2\] so this is what you did?
anonymous
  • anonymous
yes
Astrophysics
  • Astrophysics
Mhm that seems right to me haha.
UsukiDoll
  • UsukiDoll
so somehow the answer choices and whatever you guys did don't match... :/ ~_O! either wrong problem screenshot or wrong answer choices?!!!!!
Astrophysics
  • Astrophysics
\[\frac{ d }{ dx } \int\limits_{1}^{3x} \ln(t^2) dt = \ln(3x)\] see it basically just cancels out the integral you get what you initially started with, but I don't really trust this integral itself...
UsukiDoll
  • UsukiDoll
I got the solution.. *grabs problems and throws it away*
Astrophysics
  • Astrophysics
I think there is a reason it asks us to use a calculator :P
Astrophysics
  • Astrophysics
the ln(1) = 0
anonymous
  • anonymous
yeah I was thinking that but it truly no longer matters i submitted the answer as 4 and got it wrong , no worries though ill just ask my professor how to do it and see what happens.
UsukiDoll
  • UsukiDoll
uh huh ln 1 is 0... the way the question is written is odd...too strange for me :P
UsukiDoll
  • UsukiDoll
fundamental theorem of calculus? eh forget it........ <_<
Astrophysics
  • Astrophysics
Ah wait let me see...F'(x) = f(x) \[F'(x) = \int\limits_{0}^{3x} \ln(t^2) dt = \ln(9x^2)-\ln(1) \] \[F'(x) = \ln(9x^2) \times (3x)' = 3\ln(9x^2) \] I found the mistake...we're suppose to take the derivative of 3x as well..totally missed that part...ok so we have now F''(x) = f'(x) \[F''(x) = \frac{ 6 }{ x } \implies f''(1)= 6\]
Astrophysics
  • Astrophysics
F''(1) = 6*
Astrophysics
  • Astrophysics
Fundamental theorem of calculus..bleh
anonymous
  • anonymous
AAARRRRGGGGHHHH
UsukiDoll
  • UsukiDoll
wait wtf so when I said Fundamental theorem of Calculus, we got wtf we need?
Astrophysics
  • Astrophysics
Yeah haha...can you submit your answer again, does it show the right one?
UsukiDoll
  • UsukiDoll
da phuc?
Astrophysics
  • Astrophysics
haha
anonymous
  • anonymous
no -_- but it is clearly 6
anonymous
  • anonymous
damn it all to hell D:
UsukiDoll
  • UsukiDoll
ffffffffffuuuuuuxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
anonymous
  • anonymous
ugh oh well , got a B either way
Astrophysics
  • Astrophysics
I apologize for the late reply, sorry @Jdosio :\
anonymous
  • anonymous
its okay, thats what i get when i don't wait for you :(
UsukiDoll
  • UsukiDoll
ah I see how FTC part 1 would work... but damn too late...
Astrophysics
  • Astrophysics
Yeah haha, I just remembered part 1, it's so silly
UsukiDoll
  • UsukiDoll
then product rule twice... -_- CURSESSSSSSSSSSSSSSSSSSSSSS
anonymous
  • anonymous
thanks for sticking around so long either way :)
UsukiDoll
  • UsukiDoll
the variable on f(b) I remember using FTC part 1 all the time on that one... you have to substitute it into the equation (that ln t^2) and then take the derivative of 3x as well
Astrophysics
  • Astrophysics
Yup
Astrophysics
  • Astrophysics
You have to use the chain rule pretty much...it's weird.
UsukiDoll
  • UsukiDoll
phuc.. it was my slow thinking -_-
Astrophysics
  • Astrophysics
Maybe you can get your mark back, just show the work I guess
Astrophysics
  • Astrophysics
To your professor
anonymous
  • anonymous
its fine its just one question,
Astrophysics
  • Astrophysics
Well you won't forget next time either, as I like to say...the struggle is more important than the final answer :)
UsukiDoll
  • UsukiDoll
|dw:1438769488029:dw| |dw:1438769540072:dw||dw:1438769592473:dw|
UsukiDoll
  • UsukiDoll
*shoots question*
Astrophysics
  • Astrophysics
Haha
UsukiDoll
  • UsukiDoll
the problem is that FTC 1 is rarely mentioned so there's not a whole lot of practice problems.
UsukiDoll
  • UsukiDoll
everyone uses f(b)-f(a) part 2
Astrophysics
  • Astrophysics
I don't think I've used it since calc 1...I only used it once maybe?
Astrophysics
  • Astrophysics
part 2 <3
UsukiDoll
  • UsukiDoll
ftc 1 is in calc i and only in calc i where as ftc 2 is in calc ii and again in calc iv
anonymous
  • anonymous
what are you taking now @Astrophysics
Astrophysics
  • Astrophysics
I'm going to take ODE :)
UsukiDoll
  • UsukiDoll
ODEs are fun...
Astrophysics
  • Astrophysics
I've taken all the calc courses already, vector calc was ew >.<
Astrophysics
  • Astrophysics
But also fun sometimes haha
Astrophysics
  • Astrophysics
Towards the end is where I got lost, as we did not have enough time...like I still don't understand Stoke's theorem very well, but don't worry about that stuff right now haha.
UsukiDoll
  • UsukiDoll
I'm taking Discrete Math this semester to improve my proof writing techniques.
Astrophysics
  • Astrophysics
Yeah, that would be a good idea
UsukiDoll
  • UsukiDoll
gawd I hate proofs... if they are hard >:(
anonymous
  • anonymous
i really want to take tensor calc, theirs so much of general relativity that is jiberish without it :/
Astrophysics
  • Astrophysics
I think it also involves graph theory, from what I've heard is super easy
Astrophysics
  • Astrophysics
Yeah haha, I'm actually just taking the math courses that will benefit me in physics right now, al though I would love to take as many math courses I like xD, I'll probably end up doing a lot of them myself after I graduate..
UsukiDoll
  • UsukiDoll
already got 22 credits worth of upper division math XD.
UsukiDoll
  • UsukiDoll
which exceeds the BA requirements... BS I think is 39 credits
Astrophysics
  • Astrophysics
How many credits per course?
Astrophysics
  • Astrophysics
Here it's 3
UsukiDoll
  • UsukiDoll
3 credits usually, but one of them was 4
anonymous
  • anonymous
ugh all of that sounds so cool!!! i cant wait to get out of high school -_-
Astrophysics
  • Astrophysics
Ahh you're doing this in high school?! I was a total idiot during high school, actually I still am xD
UsukiDoll
  • UsukiDoll
but be prepared for those dumb general ed requirements. nugh
UsukiDoll
  • UsukiDoll
I'm doing better in university since I'm taking nothing but maths XD ... and some other requirements that aren't too bad
Astrophysics
  • Astrophysics
Lol I hate the core courses, made me take 2 english courses >:( haha.
UsukiDoll
  • UsukiDoll
yeah I'm like literary analysis isn't going to get you a job mannnnnnnnn!!!!!!!!!
Astrophysics
  • Astrophysics
Well at least I learnt how to write a research paper, so that's good I suppppppose.
anonymous
  • anonymous
i just want to do some bloody physics !! but nothing makes sense without calc 1 and 2 .... so here i am
Astrophysics
  • Astrophysics
Lol the physics that requires calculus is annoying at times but very beautiful...
UsukiDoll
  • UsukiDoll
ehhhhhhhh freelance and technical writing is different XD!!!!! Business writing is useful though
Astrophysics
  • Astrophysics
It can be very tedious
Astrophysics
  • Astrophysics
Well good luck Jdosio :D, physics and math is awesome, so keep on learning!
UsukiDoll
  • UsukiDoll
I always die in science subjects T_T. math problems... ok... science problems...OMG GET ME OUT OF HERE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Astrophysics
  • Astrophysics
Calculus is cool because you can derive a lot of the formulas from it, as in kinetmatics but I could show you how to derive those using just a position time graph as well.
anonymous
  • anonymous
yep, got to admit it can get quite mundane at times but i love it ! :D
anonymous
  • anonymous
what do you plan on doing after you graduate?
Astrophysics
  • Astrophysics
More studying!!! WOO..haha I haven't thought that far as you can see.
UsukiDoll
  • UsukiDoll
try and get in the MA ...... nothing but pure math ughhhhhh. but an MA in Math is needed to teach at colleges.
Astrophysics
  • Astrophysics
Hey, do what ever you like/ enjoy!
UsukiDoll
  • UsukiDoll
BA in Math is just teaching in High School but at least I'm overqualified for elementary/middle lol... my alma mater wants me to come back.. um no.
anonymous
  • anonymous
lol XD
Astrophysics
  • Astrophysics
Haha, I think I could probably teach a few high school courses as well...chemistry...physics...math maybe
Astrophysics
  • Astrophysics
Maybe some biology, been a long while since I've done it though xD
UsukiDoll
  • UsukiDoll
I wanna go back to the same high school I graduated in. XD. there's air conditioning in that building.
UsukiDoll
  • UsukiDoll
but I'm trying to aim for teaching at community college/university though.... better benefits.. I think
Astrophysics
  • Astrophysics
For sure!
anonymous
  • anonymous
i feel like teaching is losing though.... im not sure why i mean objectively it sounds great but i just cant see myself ever teaching and enjoying it.
Astrophysics
  • Astrophysics
Passing the torch I see, Usuki the great :)))
UsukiDoll
  • UsukiDoll
teaching is frustrating and not easy... I have to admit it. no wonder some professors get irritated.
Astrophysics
  • Astrophysics
Haha, yeah it can be, but still better than a lot of other jobs, but idk I rather just learn right now and not worry about it xD, go with the flow!
anonymous
  • anonymous
yep, okay well i'm heading to bed , see you guys around :D
UsukiDoll
  • UsukiDoll
yeah...beats minimum wage X-X
Astrophysics
  • Astrophysics
Take care :)
UsukiDoll
  • UsukiDoll
k night :)

Looking for something else?

Not the answer you are looking for? Search for more explanations.