If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)

Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Hi there,
There is an issue with role permissions that is being worked on at the moment.
If you are having trouble with access or permissions on regional forums please post here to get access: https://www.boards.ie/discussion/2058365403/you-do-not-have-permission-for-that#latest

Maths help

ted9308 · 2010-09-20 17:18:11

Anyone able to do the following question and explain the method that they use?..Show that the circle x^2+y^2 - 2rx -2ry +r^2 =0 has radius r and has the x and y axes as tangents..find the equations of the 2 circles which contain the point (1,2) and have the x and y axes as tangents..cheers:D

20-09-2010 5:18pm

#1

ted9308

Registered Users, Registered Users 2 Posts: 82 ✭✭

Join Date: December 2009

Posts: 42

Anyone able to do the following question and explain the method that they use?..Show that the circle x^2+y^2 - 2rx -2ry +r^2 =0 has radius r and has the x and y axes as tangents..find the equations of the 2 circles which contain the point (1,2) and have the x and y axes as tangents..cheers:D

0

Comments

#2 20-09-2010 6:18pm

MathsNerd31

Registered Users, Registered Users 2 Posts: 17 ✭

Join Date: June 2010

Posts: 14

Solution attached.

0
#3 20-09-2010 11:13pm

math

Closed Accounts Posts: 2 ✭

Join Date: September 2010

Posts: 2

Hi like the pdf file did you make it up in adobe reader ?

0
#4 21-09-2010 7:46am

MathsNerd31

Registered Users, Registered Users 2 Posts: 17 ✭

Join Date: June 2010

Posts: 14

It's just a Word document saved as a pdf.

0
#5 21-09-2010 3:21pm

math

Closed Accounts Posts: 2 ✭

Join Date: September 2010

Posts: 2

thank you

0