You are Here: Home >< Maths

# Maths circle help watch

1. Can anyone help me work this out / provide a solution ? Btw its part B at the bottom I need help with x
2. The tangent at that point would be perpendicular to the line joining the point and the centre of the circle. Find the gradient of the line joining the centre and the point and then you can work out the gradient of the tangent as they are perpendicular
3. (Original post by Mya_oty)
Can anyone help me work this out / provide a solution ? Btw its part B at the bottom I need help with x
Do it as simultaneous equations.
4. (Original post by Mya_oty)
Can anyone help me work this out / provide a solution ? Btw its part B at the bottom I need help with x
let into the circle's equation. If it is a tangent, the discriminant would be 0, meaning that it has equal roots, hence only 1 real solution, and in order for a line to have only 1 solution with a circle, it would have to be a tangent.

Then use that information and carry on working out the actual real solutions, which should give u x and y coordinate of the one they gave you.
5. thanks x
6. Is this AS level?
7. (Original post by Y11_Maths)
Is this AS level?
Yep
8. (Original post by Y11_Maths)
Is this AS level?
9. (Original post by jsk800)
I got worried for a moment so just had to make sure because I didn’t understand it aha
10. However this is grade 9 GCSE level maths
(Original post by Y11_Maths)
I got worried for a moment so just had to make sure because I didn’t understand it aha
11. (Original post by Y11_Maths)
I got worried for a moment so just had to make sure because I didn’t understand it aha
You need to know how to integrate x^3sin^2(x)sec^3x(e^2) at GCSE
12. (Original post by jsk800)
You need to know how to integrate x^3sin^2(x)sec^3x(e^2) at GCSE
Never been taught this. Would it be further maths GCSE?
13. (Original post by Y11_Maths)
Never been taught this. Would it be further maths GCSE?
I'm joking, that's second year A Level maths, maybe a bit beyond.
14. (Original post by jsk800)
I'm joking, that's second year A Level maths, maybe a bit beyond.
Best joke I’ve heard all day and I’ve heard a lot, literally. mug
15. (Original post by Y11_Maths)
Best joke I’ve heard all day and I’ve heard a lot, literally. mug
With that attitude, you're not getting past vectors.
16. (Original post by jsk800)
With that attitude, you're not getting past vectors.
*facepalm*

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: March 6, 2018
Today on TSR

### Uni league tables

Do they actually matter?

### University open days

• Staffordshire University
Everything except: Midwifery, Operating Department Practice, Paramedic Undergraduate
Sun, 21 Oct '18
• University of Exeter
Wed, 24 Oct '18
Wed, 24 Oct '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams