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I know how to sketch the locus. But how do you find the exact equation of the locus?

^fuaarrkin genius, can't believe it is soo much easier with similar triangles...

^hahhahahahahahahaha

Hi guys, really need help on this one: Here's the link to the question: http://img864.imageshack.us/i/57553476lch.jpg Q. (a) By considering expansions of sin(X+Y) - sin(X-Y) Prove that sinA - sin B = 2cos[(A+B)/2]sin[(A-B)/2] (b) Also given that cos A - cos B = 2sin[(A+B)/2]sin[(B-A)/2]...

oF COURSE ppl doing 2unit can do 4unit. Doesn't mean they are going to get good marks.... to be successful in 4U you need to be a RELATIVELY fast learner, you should also be able to identify and note patterns and relationships in a given questions MUCH MUCH MUCH quicker and faster than a regular...

Oh i see, geez that question was pretty easy, thanks

How do I solve sinx=cos 3x for 0(<)x(<)2pi I tried splitting cos3x into cos(2x + x) but that just didn't do anything. Anyways, thanks.

did i do it wrong? Answ: x + ln(x+1) + C

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try slyhunter

nah m8

FUAAARKK this is a pretty hard 3U question, well at least I hope so

Fucking hell, steam fucks everything up... now its even gotten to dota... nooooo!!

Re: English Tutor: 5 years experience, 3000 hours of tutoring, students from top scho do you travel to kiama?

I listen to my techno with a some $20 headphones from DickSmith. But now EVERYONE has been telling me to get a decent pair of headphones $50+, with an epic bass function, cause apparently it makes all the difference

yeah, not real hard tho, for each one you just need to remember what you have to divide by to obtain the equation, like i forget for which one, but derivation of one them, you have to divide by a^2*b^2

3(sec^2 3x) don't quote me on this

A strip means one trapezium. 5 strips means, you have divided the interval into 5 trapeziums, etc, meaning there will be 6 y-values.

would the question make sense if it was sin(theta + 2/3)?? instead of sin(theta) + 2/3?