You are Here: Home >< Maths

# Maths year 11

1. Well done.

Have a go at the other question's I've posted.
2. (Original post by z_o_e)
How did this go?

Shall I added 5 root 4 & root 6?

Posted from TSR Mobile
Is it POSSIBLE to make any simpler by any means of addition? If not, then no you don't add them.
3. (Original post by RDKGames)
Is it POSSIBLE to make
Unparseable or potentially dangerous latex formula. Error 4: no dvi output from LaTeX. It is likely that your formula contains syntax errors or worse.
5\root{5} + \sqrt{6}
any simpler by any means of addition? If not, then no you don't add them.
So this is the final answer ?

Posted from TSR Mobile
Attached Images

4. (Original post by z_o_e)
How did this go?

Shall I added 5 root 4 & root 6?

Posted from TSR Mobile
Also, show me how you got to equal ?
5. (Original post by z_o_e)
So this is the final answer ?

Posted from TSR Mobile
No. That's just simply a wrong answer. Refer to my post above ^
6. (Original post by RDKGames)
Also, show me how you got to equal ?
I added 3 + 2 inside and outside the root which got me 5 r 5

Posted from TSR Mobile
7. (Original post by z_o_e)
I added 3 + 2 inside and outside the root which got me 5 r 5

Posted from TSR Mobile
What surd rule did you use for that?
8. (Original post by RDKGames)
What surd rule did you use for that?
I didn't use a rule

Posted from TSR Mobile
9. (Original post by z_o_e)
I didn't use a rule

Posted from TSR Mobile
Precisely why your answer is wrong. You just guessed that's how it works.

cannot be simplified any further.
10. (Original post by RDKGames)
Precisely why your answer is wrong. You just guessed that's how it works.

cannot be simplified any further.
So what do I do to find the final answer?

There's nothing else really left I think that's the final answer.

Posted from TSR Mobile
11. (Original post by z_o_e)
So what do I do to find the final answer?

There's nothing else really left I think that's the final answer.

Posted from TSR Mobile
Exactly. The final answer is indeed
12. (Original post by RDKGames)
Exactly. The final answer is indeed
So surds like that cannot be added?

Posted from TSR Mobile
13. (Original post by z_o_e)
So surds like that cannot be added?

Posted from TSR Mobile
No. Square root of a number is the same as raising that number to the power of 1/2. This means that you would essentially be adding something like into which doesn't make sense because a and b are different bases and laws of indices do not work that like that.
14. (Original post by RDKGames)
No. Square root of a number is the same as raising that number to the power of 1/2. This means that you would essentially be adding something like into which doesn't make sense because a and b are different bases and laws of indices do not work that like that.
Oh thanks

And how's this

Posted from TSR Mobile
Attached Images

15. (Original post by z_o_e)
Oh thanks

And how's this

Posted from TSR Mobile
Okay hang on. The method overall is correct. Check the numerator multiplication on the first line, and then check if the denominator on the second line is truly the same as
16. (Original post by RDKGames)
Okay hang on. The method overall is correct. Check the numerator multiplication on the first line, and then check if the denominator on the second line is truly the same as
I don't see anything wrong?

Posted from TSR Mobile
17. (Original post by z_o_e)
I don't see anything wrong?

Posted from TSR Mobile
Okay. For the numerator, you have 8 on the first fraction and the (2 take 6 root 10) on the second, when you multiply the two fractions, you multiply the two numerators. So 8 times (2 take 6 root 10).

For denominator, expand the brackets and see what you get. Compare this to what you've written.
18. (Original post by RDKGames)
Okay. For the numerator, you have 8 on the first fraction and the (2 take 6 root 10) on the second, when you multiply the two fractions, you multiply the two numerators. So 8 times (2 take 6 root 10).

For denominator, expand the brackets and see what you get. Compare this to what you've written.
This?

Posted from TSR Mobile
Attached Images

19. Yeah you fixed the numerator. Now fix the denominator. Expand it and see what you get.
20. (Original post by RDKGames)
Yeah you fixed the numerator. Now fix the denominator. Expand it and see what you get.
I got this

Posted from TSR Mobile
Attached Images

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: December 10, 2016
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:
Today on TSR

### A-level exams coming up?

Find everything you need here.

Poll
Useful resources