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1) 1/9 2) let x=0.413413413... 1000x=413.413413... x=0.413413413... 1000x-x=999x 999x=413 x=413/999 3) let x=0.2161616... 1000x=216.161616... 10x=2.161616... 1000x-10x=990x 990x=214 x=214/990 x=107/495 I just felt like answering them :)

You set Domain and Range out like this: Domain: {xER: ...} Range: {yER: ...} ER means element of all reals, you could use N, Z or Q in place of R

if x = 3 + sqrt2 , make x - (1/x) have a rational denominator? SUB it in: 3+sqrt2 - (1/3+sqrt2) ... and then??

I think you mean: Cos^2 A Tan^2 A + Cos^2 A =Cos^2 A (Sin^2 A/Cos^2 A) + Cos^2 A =Sin^2 A + Cos^2 A =1

No. You write your student number. (Probably 1 mark for that :D)

I loved watching NCIS. :D

Starship troopers is a book? I thought it was just a movie.

i was like omg when i saw it. :uhoh:

Aren't pizza's meant to have toppings? :confused:

You must be high on coffee :P

All i know about calculas is differentiation :(

Drop Legal. :D

How is that: You got 2Mg and 20 on the reactant side and you got 3Mg and 3O on the product side :(

I'm excited :D

:D

4 unit all the way :lol:

5) let roots be t and t+1 SUM OF ROOTS: t+t+1=3 2t=2 t=1 therefore roots are 1 and 2 x^2-3x+(k+1)=0 (x-2)(x-1)=0 (k+1)=-1 x -2 k+1=2 k=1 (x-2)^2 + (y-5)^2 = (y+3)^2 x^2 -4x+4 +y^2-10y+25 = y^2 +6y +9 x^2 -4x -16y+20=0

What type of questions came up in your test??

"With respect to x" means dy/dx I think :)

Are you saying only 4 people do forensic phyopathanthology. :eek: