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

Qualification => Subject Doubts => GCE AS & A2 Level => Math => Topic started by: sweetie on March 26, 2010, 09:21:13 am

Title: nov09 math p12( AS CIE)
Post by: sweetie on March 26, 2010, 09:21:13 am

can any1 show me how to work out Q10.c??????????

Title: Re: nov09 math p12( AS CIE)
Post by: astarmathsandphysics on March 26, 2010, 12:10:14 pm

gradient of tangent is(1+3 sqrt(17))/2
gradient of AB=1/2

tan^(-1)((1+3 sqrt(17))/2) -tan^(-1)(1/2)

Title: Re: nov09 math p12( AS CIE)
Post by: sweetie on March 26, 2010, 01:26:01 pm

cud u plz xplain it in more details??????

its urgent ... plzzzzzzzzzzzzzzz
i have my mock 2morrow :-\

Title: Re: nov09 math p12( AS CIE)
Post by: astarmathsandphysics on March 26, 2010, 02:53:00 pm

The angle between the x axis and a curve is arctan(gradient)

The difference between two arctan(gradients) is the angle between two curves

Title: Re: nov09 math p12( AS CIE)
Post by: sweetie on March 26, 2010, 05:43:37 pm

thank u sir :)