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Vertex A of square ABCD is represented by the complex number 5 + 2i and its centre X is represented by 2 + i. Find, in the form a + bi where a and b are real,the complex numbers representing the other three vertices. Thanks in advance for any help!

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thank you so much:cake:

\frac{2x+5}{x+1}< 3 i know it's easy for u guys... but i still don't know how to solve it by multiplying the square of the denominator. greatly appreciated if someone can help :)

Why don't you do ESL if you are eligible?

This is the first time I buy textbooks online. Just wondering if any of you have purchased textbooks from "Temple Books". (Temple Books) Is it safe to buy textboooks from it? Thanks.

Leo Ku ftw:p

Re: another question Oh... thanks. but im still stuck on it >< would u please tell me how you got it. greatly appreciated :)

another question g(x)=\begin{Bmatrix} x^{2} for x\leq -1 & & \\ax+5 for -1<x\leq 2 & & \\ b/x for x> 2 \end{Bmatrix} find a and b if g(x) is to be continuous for all x. thanks.

Re: sorry, even more confused now post deleted

Re: sorry, even more confused now oh i get it now thanks :) ps. im not smart as someone said in private msg :)

sorry, even more confused now so im asking the question again. If a, b and c are consecutive positive integers show that ax^2 + bx + c = 0 cannnot have real roots. (hint: write b and c in terms of 'a' and consider the sign of the discriminant as the sign of a quadratic. what i have written...

just wondering whether im affected by the shit curriculum if i graduate in 2012

another question If a, b and c are consecutive positive integers show that ax^2 + bx + c = 0 cannnot have real roots. (hint: write b and c in terms of 'a' and consider the sign of the discriminant as the sign of a quadratic. my solution so far: Let b=a+1 c=a+2 therefore delta=b^2 -...

Re: a simple question which i cannot answer :( yeah i still want a more correct proof but anyway thank you so much

a simple question which i cannot answer :( Show that x^2 + kx + k + 2 =0 cannot have real roots if k lies between 2-2√3 and 2+2√3. thxx

pm'ed u thank you so much :)

another question AB, CD are perpendicular chords of a circle, centre O. Prove that angle DAB = angle OAC thxx

Re: another question haha anyway thank you very much again:jump:

Re: another question just wondering how u got BC=√777 cm by pyth. theorem. BC=√777 =27.87(cor. to 2 dp) which is larger than AB (17cm) lol considering AB is the hypotenuse @@