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hey ive just started calculus can you please differentiate this for me, im having trouble x + (1 over x) thanks

hey im in year 11 and we just started the wonderful world of calculus yesterday. can you please help me out this this quick question i cant seem to get the right answer which is -13. f(x) = 3x^2 - 7x - 4 at the point (-1, 6) Differentiate from first principles to find the gradient of the...

question for u math gods. I thought this question was a little crazy. does anyone have any ideas? By using the t-formulae, show that the equation a sin x + b cos x = c has real roots if a^2 + b^2 >= c^2

hey, the answer to sinx + cosx = 1 with 0<=x<=360 is 0, 90 , and another answer is 360 how does this 3rd answer come about? thanks. using the a sin x + b cos x = r sin (x+alpha)

hey, this is a question concerning the trig topic in the prelim course. is there a simpler way to do it rather than polynomials since we havent done that part of the course yet. 3tan^3 x - 2tan^2 x - tanx + 1 = 0 solve between 0 and 360 degrees. thanks

hey, ive got a question from my mathematics extension assignment and ive need a little bit of help. thought it might be fun for those of u in year 12. For the points A(-5,-1) and B(1,0): (i) Write down the coordinates of P, the point that divided AB in the ratio K:1 (ii) If P lies on xy=1...

hey sorry if this is in the wrong thread but its about the subject which isnt a specific thread in the prelim section. anyway solve between 0<=x<=360 2sin^2 x-3cosx=2 thanks for any help, if this is in the wrong thread please tell me.

hey, im currently in year 11 and, although i shouldn't be thinking about uni, was just wondering if any one could tell me what they like/dislike about the economics courses up there. thanks

Hi, just a question that I don't understand. Explain why the term "increase in amount supplied" was used and not "increase in supply". thanks if anyone can help.

Hey, Just wondering which of my subjects i should focus on this year as they will contribute greatly to the follow on from what i'll learn next year. Like maths where the syllabus follows on and the stuff you learn in year11 goes on to help you in year 12? thanks

hey, I've just started yr 11 and was wondering if there is anyone else on here perhaps yr 12 that are also doing dis ed economics??

Hey, I'm in year 10, recently I've got back my subject lines for year 11 2009. There were not enough students to make a class but I still really want to do it. I decided to do distance ed economics. But my careers advisor has told me it's not a good thing to do distance ed and has strongly...

Hey, I'm in year 10, recently I've got back my subject lines for year 11 2009. There were not enough students to make a class but I still really want to do it. I decided to do distance ed economics. But my careers advisor has told me it's not a good thing to do distance ed and has strongly...

Hey, I'm in year 10, recently I've got back my subject lines for year 11 2009. There were not enough students to make a class but I still really want to do it. I decided to do distance ed economics. But my careers advisor has told me it's not a good thing to do distance ed and has strongly...

Hey, I'm in year 10, recently I've got back my subject lines for year 11 2009. There were not enough students to make a class but I still really want to do it. I decided to do distance ed economics. But my careers advisor has told me it's not a good thing to do distance ed and has strongly...

Hey, I'm currently in year 10 and wanting to know what older economics students think about this. Recently I've got back my subject lines for year 11 2009. There were not enough students to make a class but I still really want to do it. I decided to do distance ed economics. But my careers...

Hey, Recently I've got back my subject lines for year 11 2009. There were not enough students to make a class but I still really want to do it. I decided to do distance ed economics. But my careers advisor has told me it's not a good thing to do distance ed and has strongly advised me to do...

Just wondering what everyone thinks of the subjects I'm doing and if anyone wants to comment it would be very useful. My subjects for next year are listed below For year 12 I might do maths ex2 and I've got no idea what to drop cause I don't really want to do 14 units. I have to do economics...