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omg omg tell me how. lol. i wanted to see working out, so i could kno how to do it. explain plzzzzzzzzzzzzzzz. + how u got the centre. they're both right btw.

Lets see your working out? [=

The values you have given me, EXACTLY MATCH: y=10sec(theta/2) So, you are looking at the wrong question (:. However, make sure you understand the concepts that I explained in my previous posts (y)

Ok, im lost lol. You've given me this equation: y=20sin(theta/2) So, if we sub, x=0... y=20sin(0/2) y=0? So..wheres the problem =/

y = 10 :| when x = 0 :|..... that doesn't make sense.. y=20sin(x/2) sub in x=0..what do you get ? :o y=0. Maths doesnt lie.

Hmmm, perhaps you misunderstood me? Or maybe i just explained that part poorly. In terms of maths..it is correct Ummm ok. so. When x=0 y=20 TIMES sin(0) y=0? Does it mathematically make sense?

Hi there! Well, you look at the function, and you have to recognise that its different from our regular y=sin(-). We have a 20 at the front. and a x/2. Now, I'm going to try and explain this, in a way in which we can relate to a graph. So we'll start by figuring out how the 20 changes the...

I see..... It's just that, I saw an alternative way in solving integrals such as [Int] e^xcosx dx It consists of integrating Eulers formula (Which is e^ix=cosx+isinx). By doing this, you then equate real and imaginary parts, and I think you save yourself a heck a lot of time.

I'll give you cute prelims 2 nice questions, Here's a warm up 1) a^2 = a+2 a^3 = ? Express a^3 in linear form. This one is more fun. 2) If 2^x = 5^y = 10^z, show that z = xy/x+y

Well, how far can you go =/ 4x^3-2x^3y-3xy^3-9y^4 =4x^3-9y^4-2x^3y-3xy^3 =(2x^2+3y^2)(2x^2-3y^2)-xy(2x^2+3y^2) = 2x^2+3y^2(2x^2-3y^2-xy) = (2x^2+3y^2)(2x-3y)(x+y)

Is there anything wrong with integrating complex numbers? I've heard that some teachers/lecturers get frustrated when they see students attempting to integrate complex numbers. Can anyone explain why this may be bad. All I know is this : ""Yes, in practical terms integration of complex-valued...

mate. get a life ;)

i love a girllll with nice eyes <3, a nice smile <3.........ahhhhhhhhhh<3333 and girls who are good @ maths turn me on aswell >:] lOL

oh really? i didnt know that. why was it highly improbable?

i like this. what i do is....well...yeh i stare at the question and ask myself.... "what does it MEAN?!?!!"

i kno im not answering the question, and im sorry for not doing so. however, there really is no best textbook. just get one that offers a great variety of questions, that allows you to understand and apply the concepts taught. then....its past papers ---> get used to different styles etc etc...

1 word. blowjob. x)

since mx2 is well....harder lol, im interested to see how ppl approach questions, and what the heck is going thru their mind. e.g - do you think thru systematically....etc etc. for 2u/3u for example..i dont think....i just doze off and think about the weekend...and my mind will do it for me...

the equation: |z-1-3i|+|z-9-3i|=10 corresponds to an ellipse in the argand diagram (i) write down the complex number corresponding to the centre (ii) write down the range of values of arg(z) for complex numbers z, corresponding to points on the ellipse from hsc past paper =/,

http://community.boredofstudies.org/14/mathematics-extension-2/243292/integration/2.html#post5043352