Search results

Fitzpatrick 25C, Q16 A particle moving with SHM starts from rest at x=5 and after 2 seconds reaches x=2.5. Find: i) an expression for the displacement at time t > or = 0

I've seen many different cathode reactions for the Lelanche cell. The ones in Jacaranda and Conquering are both different and I'm not sure which one is correct. <!--[if !mso]> <style> v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape...

I'm completely lost in definite integrals for 4u integration. The textbook is not making any sense to me. The Cambridge textbook is just confusing and the Terry Lee one just gives one single example with no explanations at all. Could someone kind enough please explain to me briefly the idea of...

Do these books contain similar questions as HSC questions or are many of them irrelevant like the ones in textbooks? I also remember seeing two types, what is the difference? I was just wondering because I wanted to practice for my half yearlies without using trial past papers just yet. And I am...

For this question, how do I show for n 2. I have already shown the first part.

In chapter 5.3 in Cambridge 4u there is an example: I don't understand why it is necessary to restrict the values of u so that each x-value in the domain of the integrand corresponds to exactly one value of u. I'm guessing the same concept applies when doing trignometric substitutions...

I was doing a question in the Cambridge 4u textbook and came across a question which used the standard form below: I have never came across this before and the textbook doesnt have the proof... I was wondering if anyone could prove it for me. Thanks!

I don't understand what this question means by using symmetry arguments. Edit: sorry, you are going to have to click the link because I don't know the code..

how do you differentiate inverse cosecx

Hi everyone, I was just doing inverse trigonometric fn exercises in the textbook, but decided not to skip the revision exercise(revisit of inverse fn's) included in it since I having touched it for a while. There is a question which requires me to sketch g^-1(x) = (2-x)/(x-1). How do I know...

Integrate 2^logx. I tried making it base e then integrating but it doesnt work......

The Jacaranda explanation is not making sense to me: In the late nineteenth century, belief in the aether posed a difficult problem for the principle of relativity, because the aether was supposed to be stationary in space and light was supposed to have a fixed velocity relative to the...

how do i simplify e^lnx so that I can differentiate it?

Does anyone do every single question? Or do most of you just skip some so you do them later?

For the proof for multiple roots theorem, what is the reason we cannot let Q(a)=0? Thanks in advance.

I tend to type my notes a lot at home but my computer is located in the lounge room (parents don't trust me) and my little brother always turns the TV on even when hes not looking at it. So I was wondering if it would be worth it to purchase one of those little netbooks so I can use it in my...

solve sin3x=cos2x

For my independent investigation, I'm doing the heat of combustions of hydrocarbons. I was absent from school on the day my teacher explained to the class on how to perform the investigation. I have already researched the topic but I am still unsure about something. Is it true that if a...

Let say I'm going to do 12 units in year 12. I score very high for all 10 units except for english(which is compulsory) in the externals which I scored very low. Does my score for the top 10 units count in my atar? or is it that English is taken into account regardless and replaces two of my units?

Hi, Can someone give me an example for finding angles of inclination of the tangent and normal and help me do this question: Find the equation of the tangent and normal to the graph of f(x) = x^2 - 8x + 15 at the (4, -1).