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回复: Re: Hard or Easy Maths Question... 4unit class come solve it never said they did. but they definatley save me alot of marks

a) i'd say as x-->+/-infinity, y--> 0^- just divide throughout by the highest power (in this case x^2) and then remember that 1/x=0 b) x-->0, y -->-infinity c) Domain: all real x except x=0. Range: all real y<0 d)y cannot = 0 sorry if its wrong, and for the lack...

Damn you!!! wish i could do that it would save soooo much time

hahahahaha here we go perfect example. according to my brain: 45-20=15!!!! o well atleast i worked it out correct and in a test id have a calc even if the question was wrong

haha i trust myself in maths when ive got a calculator but the fucking dyspraxia makes it hard for me to remember some timestables from the ones like 11 and 7 and stuff im getting better tho slowly:rolleyes:

haha your probably right then i wouldnt trust my maths in my head i have dyspraxia so i fuck up even simple calculations in my head

is the answer 15??? im not sure coz i just proved conguency in triangles QUX and QVX then found the area of QRS which i found to be 45 then subtracted triangle A and triangle B away from it??:uhoh:

I'm probably wrong, so if i am can someone explain it to me. but in those official solutions it says .5*5*32=160 but it doesnt, it equals 80 is there something els eu have to do? thanks

u need to fucking chill conics its just maths...

in a 4 unit assesment i said: 8+3i -(3-2i) = -3 + 5i cost me 2 % still came firs tho =] stupid dyspraxia.. funny stuff but

its a textbook

yeah good logic.... 4 units actually harder than 2 unit??

sorry i just figured u were using parameters from the heading..

it doesnt. tangent has equation: y-px+ap^2 = 0 chord of contact has: xx* =2a(y + y*) where (x*,y*) is the intersection of the tangents

bit cocky dont u think? how do u no ull get 98% in the exam??

can someone tell me the horizontal asymptotes of y=1/arctanx? thanks

yeah its not neccesary. ive just found when i explainit to ppl they understand that easier

the first rule is on for when you have 3 y-values. the second is for any. just remember the second one

id say let u= x^3 -1

it just means the roots are x-c, x, x+c so then u can just solve really simply using ure relationships between coefficients