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in vector representation of complex numbers, i dont understand the concept of adding/subtracting the vectors and when to add or subtract. can someone explain this to me? thanks in advanced

i havent finished the course yet, but so far conics looks it

in working, wen determining critical points. they simply state as y approaches a, dy/dx approaches b. how can they just simply state this? where does it come from

here are the solutionz to ur question blackops. sorry for my writing

in the preliminary yr, how does the teaching of the maths extension I course work?

thanks guyz

thanks lol

how the fuk do u do q5) b) http://4unitmaths.com/2003WRpaper.pdf

q2) c) iii) http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2009exams/pdf_doc/2009-hsc-exam-mathematics-extension-1.pdf

id say circle geometry

i spend about 15 minutes

having some difficulties studying on my own

A cube of side length 400sqrt(11) has vertices A,B,C,D,E,F,G,H. Two beetles lie on the same face of the cube on the vertices, one above the other. One beetle begins to travel downwards towards the base of the square surface at twice the rate at which the remaining beetle travels to travel up...

the region bounded by the curve y=e^x and the lines x=1 and y=1 is rotated about the x-axis. find the exact volume of the solid formed

I(n)=integral[1/(x^2+1)^n] dx find I(n) in terms of I(n-1)

integrate lol

ill start off: d/dx[x(ln(x))^2]

this question had kept me up quite a bit lately. i think i may be underestimating maths extension I which i will taking next yr. i currently sit on an average of 97 for the yr 10 course. i have learnt half if not more of the 3 unit course yet i still, under some nerve, am not sure. my question...