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Maths year 11

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Reply 1380
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z_o_e
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11
Original post by RDKGames
Correct method except you must've gotten carried away because at the very bottom, 5 and 5 do not make up 10 with multiplication.


I got 2 root 35


Can I have a few surd questions please
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Reply 1381
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z_o_e
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11
Sorry 10 root 7



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Original post by z_o_e
I got 2 root 35


Can I have a few surd questions please
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Incorrect. You missed out another root 5.
Original post by z_o_e
Sorry 10 root 7



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Yeah that's good.

Try 234\sqrt{234}
Reply 1384
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z_o_e
OP
11
Original post by RDKGames
Yeah that's good.

Try 234\sqrt{234}


And I did this too


Omg how did I learn to simplify them!
I had a bit of a break from maths as you can tell!
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Original post by z_o_e
And I did this too


Omg how did I learn to simplify them!
I had a bit of a break from maths as you can tell!
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Correct. Yeah, breaks help :tongue:
Reply 1386
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z_o_e
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11
Original post by RDKGames
Yeah that's good.

Try 234\sqrt{234}


I don't really know about this...
As 59 is a prime number


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Original post by z_o_e
I don't really know about this...
As 59 is a prime number


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Check your working again because 59 shouldn't even be in there
Reply 1388
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z_o_e
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11
Original post by RDKGames
Check your working again because 59 shouldn't even be in there


Done it

Can I have a few random ones expanding simplifying whatever... you know :smile:

So I can move on

I'm not sure if aqa wants more detail on surds? This is basic I think

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Original post by z_o_e
Done it

Can I have a few random ones expanding simplifying whatever... you know :smile:

So I can move on

I'm not sure if aqa wants more detail on surds? This is basic I think

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Yeah this is pretty basic simplification. Exams would want to see you apply this in more complicated questions such as expanding. Have a go at the one's I've posted before.

Original post by RDKGames
Simplify:
22⋅22\sqrt2 \cdot \sqrt2
65⋅256\sqrt5 \cdot 2\sqrt5
393\sqrt9
74−297\sqrt4 - 2\sqrt9
38−2643\sqrt8 - 2\sqrt{64}



Original post by RDKGames
(1+37)2(1+3\sqrt7)^2
(2+2)(3+3)(2+\sqrt2)(3+\sqrt3)
82+610\frac{8}{2+6\sqrt10}
Reply 1390
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z_o_e
OP
11
Original post by RDKGames
Yeah this is pretty basic simplification. Exams would want to see you apply this in more complicated questions such as expanding. Have a go at the one's I've posted before.


Shall I do them again?

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Original post by z_o_e
Shall I do them again?

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Yes. Try not to look back on your book and attempt to get them right first time. :smile:
Reply 1392
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z_o_e
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11
Original post by RDKGames
Yeah this is pretty basic simplification. Exams would want to see you apply this in more complicated questions such as expanding. Have a go at the one's I've posted before.


How do I subtract them?


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Original post by z_o_e
How do I subtract them?


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Looks good.
Reply 1394
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z_o_e
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11
Original post by RDKGames
Looks good.


I'm not sure how to minus surds

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Original post by z_o_e
I'm not sure how to minus surds

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Well first simplify each individual term.
Reply 1396
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z_o_e
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11
Original post by RDKGames
Well first simplify each individual term.


I got 8 for number 4

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Original post by z_o_e
I got 8 for number 4

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Correct. :smile:
Reply 1398
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z_o_e
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11
Original post by RDKGames
Correct. :smile:


And this?

Shall I add the 8 in front of the 2


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Original post by z_o_e
And this?

Shall I add the 8 in front of the 2


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Careful. You decomposed the roots correctly, but remember that you are also multiplying those roots by the 3 and 2 which you forgot to include.

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