• We need YOU to help the next generation of students in the community for the new syllabus!
    Share your notes and trial papers on our Notes & Resources page
  • Like us on facebook here

2007 cssa solutions? (1 Viewer)

Hikari Clover

Member
Joined
May 26, 2007
Messages
344
Gender
Undisclosed
HSC
2007
回复: 2007 cssa solutions?

q3 was already solved for u .....

i need Q6.....

by the way , any1 needs solutions for Q8 ?
 

Tmer

New Member
Joined
Sep 24, 2005
Messages
14
Gender
Male
HSC
2006
ok i think i at least worked out the 2nd part of q6

using the quadratic root formula x^2=..... and solving for discriminant >=0
two solutions are established either b>=2 or b<=-2 but using the quadratic formula again x=.... b>=2 doesnt make sense
so b<=-2

i am not too confident with this answer tho...
 

Hikari Clover

Member
Joined
May 26, 2007
Messages
344
Gender
Undisclosed
HSC
2007
回复: Re: 2007 cssa solutions?

how did u do Q1 (c),the last bit..........
 

Tmer

New Member
Joined
Sep 24, 2005
Messages
14
Gender
Male
HSC
2006
remember limit of sinx/x from 3 unit? as x--->0 sinx/x approaches 1 (drawing a graph will show u this)
and limit of sinx/x as x----> infinity is obviously 0...
so 1=a and 0=a+b b=-1

ps. server veryy laggy atm tried to post this an hr ago..
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top