IGCSE/GCSE/O & A Level/IB/University Student Forum

Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: mz on May 12, 2010, 06:57:51 am

Title: math p1
Post by: mz on May 12, 2010, 06:57:51 am

suppose a question involving b^2 - 4ac and showing that a constant has no roots and hence finding the range of the constant comes, how do we find the range?

Title: Re: math p1
Post by: nid404 on May 12, 2010, 07:17:23 am

give a question...cuz this is something new...where'd u see this?

Title: Re: math p1
Post by: XaM!! on May 12, 2010, 07:19:55 am

Quote from: mz on May 12, 2010, 06:57:51 am

suppose a question involving b^2 - 4ac and showing that a constant has no roots and hence finding the range of the constant comes, how do we find the range?

find its min point n greater than that will be its range....

Title: Re: math p1
Post by: cashem'up on May 12, 2010, 07:26:57 am

Quote from: mz on May 12, 2010, 06:57:51 am

suppose a question involving b^2 - 4ac and showing that a constant has no roots and hence finding the range of the constant comes, how do we find the range?

since it has no roots equate  it to less than 0 , that is b2-4ac and then solve the equation  and since u will get to values for the constant use it to find the range
 ;D ;D ;D

Title: Re: math p1
Post by: cashem'up on May 12, 2010, 07:28:19 am

i meant two value soz....:P
and wish u all best of luck exam in an hour........:P
 ;D ;D ;D

Title: Re: math p1
Post by: XaM!! on May 12, 2010, 07:40:22 am

ya put those x in curve n get min or max value... n make range...

Title: Re: math p1
Post by: mz on May 12, 2010, 03:53:02 pm

lol thanx everyone i got it =D