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find all over complex numbers

forgot how to do z^3=8i. Express in x+iy form

now solve P{x} over the real number system

How do we know this? Don't worry about this i just when into my notes and and read the textbook and found the roots of multiplicity{r} has {r-1} roots for p'{x} and {r-2} roots for p''{x} and so on.. THANKS ANYWAYS

The polynomial x^4+ax^2+bx+36 has a double root of x=2 find a, b Thanks

Thats right teachers always skew you in english but in maths its either right or wrong. Also in english markers look to take off marks when maths marker look to give you marks. Therefore 2U, 3U, 4U maths> shitty Adv. English

2 ppl in class, ranked first :D

you know how a line eg. y=3x+2 where m=3 and y-intecept = 2 its that type of formula {equation of tangent in terms of its graident} The formula and how its devired it pretty long but ill do it, i dont think some teachers dont do it but my teacher is fully into maths and is a good teacher...

Start you off 4x squared + 5y squared = 20 / by 20 x squared /5 + y squared / 4 =1 a squared =5 b squared = 4 a = root 5 b = root 4 = 2 Thats the ellispe. The line 2x+2y-1=0 2y=-2x +1...

i cant figure out how to do this question between 3 wires X, Y, Z, 1 having 4 A{X}, 5A{Y}, 6A{Z} , also the current is flowing in the same direction. The distance between X and Y is .1 m and the distance between Y and Z is .15m. Calculate the resultant force per metre on the wire X.

my 2 class 4u is on 4th topic which is conics. we have done complex, sketching, and polyinomals

No way sketching is the easist

but sketching curves course in the 4unit requires no calculus.

At my school we are so infront in the 2unit and 3unit course and also the 4unit course that we can have one term to do revision, as to having hard tests, we get pretty hard questions that we have never seen before in tests most people do pretty bad and a few do pretty good. 12 people in 2 unit...

yere i remember that i did this question in yr 11 and when through my notes and found it. i took a 1/6 and (k+1) as a factor =1/6 (k+1) [k(2k+1) +6(k+1)] =1/6 (k+1) [k^2 +k +6k+6] =1/6 (k+1) (2k+3)(k+2) Thanks for help

I dont know how you got from line 2 to 3

yere thanks for the help!! :)

i got a question im stuck on. for n=1,2,3 ....., let Sn = 1^2 + 2^2 + .... n^2 (i) Use mathematical induction to prove that, for n=1,2,3...., Sn = 1/6 n (n+1)(2n+1)

harder 3u looks like its the hardest, conics isnt too bad

yere i just got it before yere post. Thanks for the help :D