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  1. Shadowless

    TP1 - Fin Math1A Calculus Online Test 1

    Was just wondering if anyone has completed this? And if you have, what is exactly in it? I'm thinking of doing it, but I'm still struggling to do q43+ (i.e. the Limits section) in the Calculus HW booklet.
  2. Shadowless

    MATH 1151 Calculus Homework QuestionS Help

    Exactly XD. Oh btw Spiral, what course(s) are you doing this year?
  3. Shadowless

    MATH 1151 Calculus Homework QuestionS Help

    Evaluate the following limits. a) I'm not really sure as how to 'show all working' on this question.
  4. Shadowless

    SCIF 1121... I Am So Lost

    Someone care to explain to me what is going on? Like... what's this talk about a 'journal'? And what exactly is homework? I've been to the lectures and tutorials, haven't missed any of them, and I STILL don't really have a clue what's going on. Furthermore, could someone provide me a list...
  5. Shadowless

    Is this right?

    hmm... well if... f(x) = (sin[x]).(3x+1) then... f'(x) = (sin[x])(3) + (3x+1)(cos[x]) = 3sin[x] + 3xcos[x] + cos[x] ? In relation to your statement 'does it become (sin[x])/(cos[x]) = 1', the answer is no. It's... 'sin[x]/cos[x] = tan[x]'.
  6. Shadowless

    Is this right?

    Then shouldn't it be: f(x) = sin(3x+1) ? O.o
  7. Shadowless

    MATH 1151 Homework Question 35) b)

    I'm not sure if I missed something but the question basically asks me to express sinh 3x as a cubic polynomial in sinh x. And then integrate: sinh^3 x against x. Now... my answer is almost the same as the one in the book... the only difference being I have a '+ C'. I've also noticed that other...
  8. Shadowless

    MATH 1151 Homework Question 34) c)

    Hmm, yeh, the book has that answer as well. But let's say I received this question in the exam. Would I lose marks if I used my method? (Just to be on the safe side I will probably use the other approach, but I'm just curious if I would lose marks.)
  9. Shadowless

    MATH 1151 Homework Question 34) c)

    Is that correct? or not?
  10. Shadowless

    Help With Some ECON1101 Questions

    I see... Thanks for your help XD
  11. Shadowless

    MATH 1151 Assessment

    I see... So If I wanted to 'practice the code/syntax' I would do so via the MATLAB self-paced lessons? And thanks.
  12. Shadowless

    MATH 1151 Assessment

    So I've discovered we have two online computer tests (MATLAB) due this week. "The online tests may be completed on any suitable web browser in your own time, but as the MATLAB package will be needed to answer the questions, the School computing labs are probably the best place to attempt the...
  13. Shadowless

    Help With Some ECON1101 Questions

    Oh.. so similar to my 10:46pm post? BTW deswa what course are you doing this year?
  14. Shadowless

    Help With Some ECON1101 Questions

    Wow, so detailed. Hmm.. Today I had an economics tutorial and from what I recall the tutor said something along the lines of... - cost-benefit analysis - if you compare both cases you will see that the 'benefits' one receives from putting out rubbish would be the same in both cases, however...
  15. Shadowless

    Help With Some ECON1101 Questions

    Residents of your city are charged a fixed weekly fee of $6 for rubbish collection. They are allowed to put out as many bins as they wish. The average household disposes of three bins of rubbish per week under this plan. Now suppose that your city changes to a ‘tag’ system, under which each bin...
  16. Shadowless

    MATH 1151 Question

    Hmm... Makes sense. But would I have to provide an explanation? Or could I just write: Therefore there would be '12978189' digits in the decimal expansion. ?
  17. Shadowless

    MATH 1151 Question

    I think I understand 'logarithmic differentiation' but my answer is pretty messy: If the above isn't the right answer then it would probably mean I don't full understand how to use this 'logarithmic differentiation' and if so could someone guide me step-by-step through applying the...
  18. Shadowless

    MATH 1151 Question

    Okay... what I don't understand is why is the answer '12978189' as opposed to '12978188'. Shouldn't you be rounding down? =/
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