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# Identity or equation? watch

1. (Original post by ghostwalker)
N={1,2,3...} is just saying what the set of natural numbers is, which RDKGames refered to in his post, i.e. 1,2,3....

What do you man by "only these values" as compared to "for all n but 0"? How are they different? Are you trying to include fractional and irrational n?
Yeah can you include negative irrational and fractional n?
2. (Original post by 111davey111)
Yeah can you include negative irrational and fractional n?
That's not part of the definition of the radical format, so no.
3. (Original post by ghostwalker)
That's not part of the definition of the radical format, so no.
so is it that its not defined for them values like n=0? But how come my calculator gives me an answer for say 0.5rt(4) radical format?
Thanks
4. (Original post by ghostwalker)
what's for example.
Here, we enter the amazing world of imaginary numbers. i!!!!!!!!!!!!
5. (Original post by 111davey111)
so is it that its not defined for them values like n=0? But how come my calculator gives me an answer for say 0.5rt(4) radical format?
Thanks
I wouldn't know - I don't have your calculator. For all I know it's working out 0.5 x rt(4).
6. (Original post by ghostwalker)
I wouldn't know - I don't have your calculator. For all I know it's working out 0.5 x rt(4).
its a button where you can choose the index of the radical and when you choose say -2 for the index it gives the same value as if you have x^(1/-2) and this works for all numbers but 0. is this technically not right but just how the calculator is programmed?
Thakns
7. (Original post by 111davey111)
its a button where you can choose the index of the radical and when you choose say -2 for the index it gives the same value as if you have x^(1/-2) and this works for all numbers but 0. is this technically not right but just how the calculator is programmed?
Thakns
Just how the calculator interprets your input. It's not taking the finer points of the definition of the radical sign, but rather just translating it to the right hand side of your original equation.
8. (Original post by ghostwalker)
Just how the calculator interprets your input. It's not taking the finer points of the definition of the radical sign, but rather just translating it to the right hand side of your original equation.
Thanks, so an identity for n being all natural numbers then?
9. (Original post by 111davey111)
Thanks, so an identity for n being all natural numbers then?
With the proviso on x as mentioned in post #12.

My last comment on this.
10. (Original post by ghostwalker)
With the proviso on x as mentioned in post #12.

My last comment on this.
Thanks, i get it now. lol not very friendly that...

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