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# Maths year 11

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1. (Original post by z_o_e)
Oh alright x

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Oh I think I see where you're going wrong. It's just the way you write it.

You wrote as when you really meant it as . Place the number in that little gap of the root as opposed to next to it, it's where I got confused.

Other than that, you got C and D wrong.
2. (Original post by RDKGames)
Oh I think I see where you're going wrong. It's just the way you write it.

You wrote as when you really meant it as . Place the number in that little gap of the root as opposed to next to it, it's where I got confused.

Other than that, you got C and D wrong.
How do I do c and D ?

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3. (Original post by z_o_e)
How do I do c and D ?

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For C, you were right at but you are wrong to say that this is the same as .

For D, it's a similar problem. . The fifth root of 32 is 2.
4. (Original post by RDKGames)
For C, you were right at but you are wrong to say that this is the same as .

For D, it's a similar problem. . The fifth root of 32 is 2.
How do I do b?

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5. (Original post by z_o_e)
How do I do b?

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You are correct at . Now multiply this fraction by . Also your C is wrong on that too.
6. (Original post by RDKGames)
You are correct at . Now multiply this fraction by . Also your C is wrong on that too.
I got 225/25

So do I divide 25 by 225 and see what whole number goes into it?

What's wrong with C?

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7. (Original post by RDKGames)
You are correct at . Now multiply this fraction by . Also your C is wrong on that too.

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8. C is now fine.

For B:
9. (Original post by RDKGames)
C is now fine.

For B:
How will I do these type of questions

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10. (Original post by z_o_e)
How will I do these type of questions

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I'll do the first example for you.

11. (Original post by RDKGames)
I'll do the first example for you.

I gave it a go ;//

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12. (Original post by z_o_e)
I gave it a go ;//

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Absolutely correct!
13. (Original post by RDKGames)
Absolutely correct!
Yuss♥

Wb this?
Do I flip them over in the end?

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14. (Original post by z_o_e)
Yuss♥

Wb this?
Do I flip them over in the end?

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That's correct.

When you have a fraction raised to -1, the "flipping over" procedure is called taking the reciprocal of the fraction. It is easy to remember this, and well worth it.

The way it works is this;

Take

This is the same as

We can multiply the denominator by 3, which forces us to multiply the numerator by 3 as well:

which is "flipped"
15. (Original post by RDKGames)
That's correct.

When you have a fraction raised to -1, the "flipping over" procedure is called taking the reciprocal of the fraction. It is easy to remember this, and well worth it.

The way it works is this;

Take

This is the same as

We can multiply the denominator by 3, which forces us to multiply the numerator by 3 as well:

which is "flipped"

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16. Correct.
17. (Original post by RDKGames)
Correct.
How do I do this?

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18. (Original post by z_o_e)
How do I do this?

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You can treat the 32 as a fraction of 32/1 if you wish.

Otherwise:

19. (Original post by RDKGames)
You can treat the 32 as a fraction of 32/1 if you wish.

Otherwise:

So for this... idk this is Confusing

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20. (Original post by z_o_e)
So for this... idk this is Confusing

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Yeah that's right. The cube root of 27 is....

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