ATAR Notes: Forum

HSC Stuff => HSC Maths Stuff => HSC Subjects + Help => HSC Mathematics Extension 2 => Topic started by: Nagisa on December 09, 2012, 03:06:42 pm

Title: Halp pls
Post by: Nagisa on December 09, 2012, 03:06:42 pm
has roots which are in geomoetric progression.

Show that and hence show that   

can get first bit, but stomped on showing   
Title: Re: Halp pls
Post by: polar on December 09, 2012, 04:08:55 pm


should be , if you try the polynomial , then,  whereas the other one gave -196560
Title: Re: Halp pls
Post by: Nagisa on December 09, 2012, 04:54:52 pm
thanks man, didn't think of that, thought it would be fairly straight forward. btw, for everyone's sake. when using latex, could u pls use "\left(,\right)" instead of just "(,)". it's very impressive but just looks awful.
Title: Re: Halp pls
Post by: polar on December 09, 2012, 05:02:05 pm
yeah lol, I thought if I did \left( and \right), the lines would be too long, I shall fix that now
Title: Re: Halp pls
Post by: Nagisa on December 09, 2012, 05:03:41 pm
cheers man, ill +1 you if you +1 me
Title: Re: Halp pls
Post by: Hancock on December 09, 2012, 05:19:03 pm
The respect system isn't meant to be as used a trade scheme. You +1 somebody if they do something worth reading on the forum.
Title: Re: Halp pls
Post by: Nagisa on December 09, 2012, 05:19:56 pm
should be , if you try the polynomial , then,  whereas the other one gave -196560

yeah it's no mistake on my part, that's what the book says. dunno maybe its a mistake, can anyone explain? thanks again polar ya sickent