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# C1 Maths Indice Problem watch

1. When you have a fractional power on a value, how do you work out the end value?
9 to the power of 3/2 will become the square root of 729 (9 cubed)
How do you work out the square root of 729 without a calculator?
I've noticed they always seem to be part of the timetable for the original coefficient but have never been taught how to find the final coefficient after being raised to the power.
2. You might like to deal with the denominator of the fraction first (i.e. the 1/2) to make your value nicer to deal with, so square root the 9 and THEN cube instead of vice versa
3. (Original post by Student403)
You might like to deal with the denominator of the fraction first (i.e. the 1/2) to make your value nicer to deal with, so square root the 9 and THEN cube instead of vice versa
Oh, I see, so square root 9 = 3 then cube = 27. Thanks, I never broke it down like that
4. (Original post by helena1999)
Oh, I see, so square root 9 = 3 then cube = 27. Thanks, I never broke it down like that
Perfect yeah! No problem

Could you try 8^(5/3) for me, just to make sure the idea is cemented?
5. (Original post by Student403)
Perfect yeah! No problem

Could you try 8^(5/3) for me, just to make sure the idea is cemented?
cube root of 8 = 2
2 to the power of 5 = 32

Thanks!! That really helps
6. (Original post by helena1999)
cube root of 8 = 2
2 to the power of 5 = 32

Thanks!! That really helps
Good job! That's about as tough as it gets!
7. (Original post by Student403)
Good job! That's about as tough as it gets!
Thank you so much, at least I'll pass the indices section of the exam
8. (Original post by helena1999)
Thank you so much, at least I'll pass the indices section of the exam
You're most welcome ^.^ Tbh I'm sure you'll be passing a lot more
9. (Original post by Student403)
You're most welcome ^.^ Tbh I'm sure you'll be passing a lot more
Hopefully with lots of practise! Do you do Maths A-Level?
10. (Original post by helena1999)
Hopefully with lots of practise! Do you do Maths A-Level?
Indeed I do Feel free to ask anything else!
11. (Original post by Student403)
Indeed I do Feel free to ask anything else!
kill me pls i don't want to do physics anymore my body has slowly deteriorated into a mess of leaves
12. (Original post by thefatone)
kill me pls i don't want to do physics anymore my body has slowly deteriorated into a mess of leaves
Leaves..

Perhaps biology would be better?
13. (Original post by Student403)
Leaves..

Perhaps biology would be better?
do some biology then strike me in the most fatal placxe then i can die quickly
14. (Original post by thefatone)
do some biology then strike me in the most fatal placxe then i can die quickly

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Updated: March 27, 2016
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