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http://community.boredofstudies.org/attachment.php?attachmentid=24811&d=1333966172 mirakon posted earlier some notes and the above is one link is one set of those. for the graphs of abs(y)=f(x) and abs(y)=abs[f(x)] can someone explain the logic behind the procedure?

This is random, but can someone help me wif this question? (a) Consider the following statements about a polynomial Q(x) . (i) If Q(x) is even, then Q'(x) is odd. (ii) If Q'(x) is even, then Q(x)is odd. Indicate whether each of these statements is true or false. Give reasons for your answers...

Hey guys, assessments are beginning/beginning soon. Post your marks here.

how would you go about q2 d?

http://exampapers.web.fc2.com/tests/hs/y11/physics/2002BlakehurstHSMovingAboutTopicTest.pdf For Q2 of the above paper is the velocity of the boat relative to the ground 8 m/s north? Confused with what the velocities are relative to. Can someone tell me how to determine this?

Hey guys, can someone draw and explain this sort of graph for me?

Guys how would you sketch graphs like y=ln(x)/x^2 and y=e^x/x? Having trouble with them. Thanks.

Its so frustrating I was trying to get this question: In how many ways can 4 consonauts and 3 vowels be arranged in a row if (b) so that the first and the last places are occupied by consonauts? and apparently the answer is 3!*4!*5C3. How?!!!!!!!!!!!!!!!!

thanks guys.

Can you guys make a list of the geometric properties of simple shapes like rectangles, squares etc? I lack this knowledge lol.

Say in year 12 you had a mx2 class with only one student. Now, people say that the internal assessments are worth half of your final hsc mark and that the internal is more about ranks than marks. If you are ranked 1/1 how will your internal be calculated?

This is the one topic that is truly pssing me off in the fact that I cant seem the learn anything on my own. Anyways, thanks in advance guys.

In 4U volumes, I usually say let the volume of the shell formed at some distance x along the x-axis within the given closed interval be delta V. Is this right?

Hey guys, I know my sig. says im taking advanced but I picked standard instead and now regret my decision. Is it too late to switch at this end of the year? I am not going to school anymore so is it possible I could sort things out at the start of yr 11?

q4 cambridge solutions solve the forces in the vertical so as to give Tcos(theta)+Nsin(theta)=mg, how is this?

hey guys, could u give me an idea of the difficulty in yr 11 and 12 seperately?

today they 'officialised' our yr 11 subjects. i got physics, chemistry, english, maths 3U and biology but i didnt fuking engineering studies! im fuking pissed, wat should i do instead? i dont really want to do biology so thats one gap and i dont want to do legal studies which was selected as a...

note: questions may only be posted by the solver of the previous problem to start off: d/dx[cos^(-1)[-1/x]]

http://www.angelfire.com/ab7/fourunit/sydneytech2004.pdf q7) b) iii)

integral[sin(4x)sin(2x)] dx from x=0 to x=pi/4 =(1/2)integral[cos(2x)-cos(6x)] from x=0 to x=pi/4 =(1/2)[(1/2)sin(2x)-(1/6)sin(6x)] from x=0 to x=pi/4 =(1/2)[(1/2)-(1/6)]=(1/2)[1/3]=1/6 the answer is 1/3, i can not see wat is wrong wif my working