Turn on thread page Beta
 You are Here: Home >< Maths

# Soloman C4 Paper A. Question 8 watch

1. I calculated the gradient of the tangent at P to be (-(6)^(1/2))/6
Therefore i thought that the gradient of the normal would be (6)/((6)^(1/2)).
Can you please explain how this is wrong.
https://5c59854d0ccd29d489c9e5e689a8...20C4%20OCR.pdf

Thanks.
2. (Original post by SamuelN98)
I calculated the gradient of the tangent at P to be (-(6)^(1/2))/6
Therefore i thought that the gradient of the normal would be (6)/((6)^(1/2)).
Can you please explain how this is wrong.
https://5c59854d0ccd29d489c9e5e689a8...20C4%20OCR.pdf

Thanks.
What makes you think it's wrong?
3. (Original post by SamuelN98)
I calculated the gradient of the tangent at P to be (-(6)^(1/2))/6
Therefore i thought that the gradient of the normal would be (6)/((6)^(1/2)).
Can you please explain how this is wrong.
https://5c59854d0ccd29d489c9e5e689a8...20C4%20OCR.pdf

Thanks.
It is correct..

Maybe you just need to think about what 6/root6 is
4. (Original post by SamuelN98)
I calculated the gradient of the tangent at P to be (-(6)^(1/2))/6
Therefore i thought that the gradient of the normal would be (6)/((6)^(1/2)).
Can you please explain how this is wrong.
https://5c59854d0ccd29d489c9e5e689a8...20C4%20OCR.pdf

Thanks.
It might help if you realise that
5. Yep, nevermind...
6. Thanks for the quick responses!
I didn't think of it like that, if there equivalent is it suitable in an answer to continue using 6/((6)^(1/2)).
7. (Original post by SamuelN98)
Thanks for the quick responses!
I didn't think of it like that, if there equivalent is it suitable in an answer to continue using 6/((6)^(1/2)).
I don't see why not, as a simplified answer is not necessary for this show that question, that said, why would you bother?
8. (Original post by SamuelN98)
Thanks for the quick responses!
I didn't think of it like that, if there equivalent is it suitable in an answer to continue using 6/((6)^(1/2)).
I suppose so, but it's more difficult to do or see things than if you just simplify it straight away.
9. Im not sure id see the relationship straight away. Should do now though.
10. (Original post by SamuelN98)
Im not sure id see the relationship straight away. Should do now though.
That's how it was for all of us, it'll become amazingly transparent after some practice!

Turn on thread page Beta

### Related university courses

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 22, 2016
The home of Results and Clearing

### 2,605

people online now

### 1,567,000

students helped last year
Today on TSR

### University open days

1. Sheffield Hallam University
Tue, 21 Aug '18
2. Bournemouth University
Clearing Open Day Undergraduate
Wed, 22 Aug '18
3. University of Buckingham
Thu, 23 Aug '18
Poll
Useful resources

## Make your revision easier

### 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

Can you help? Study help unanswered threads

## Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE