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# Differentiation watch

1. How do I differentiate √x^3 / 2 ?

I suppose what i'm actually trying to figure out is whether i can keep 2^1/2 on the bottom as a fraction when i differentiate..
2. (Original post by ᒍack)
How do I differentiate √x^3 / 2 ?
Write . Proceed as normal.

The is a coefficient of x so yes you keep it. The usual rule applies
3. (Original post by RDKGames)
Write . Proceed as normal.

The is a coefficient of x so yes you keep it. The usual rule applies
Ohhhhh, i misread ignore what was just wrote, thanks my dude!
4. (Original post by RDKGames)
Write . Proceed as normal.

The is a coefficient of x so yes you keep it. The usual rule applies
How do you differentiate it when it was in the form: X^{3/2} ?
I read the formula but have never seen it like that before, Cheers!
5. (Original post by ᒍack)
How do you differentiate it when it was in the form: X^{3/2} ?
I read the formula but have never seen it like that before, Cheers!
The power of 2 is just a constant therefore it can be taken outside during the process of differentiation like so:

6. (Original post by RDKGames)
The power of 2 is just a constant therefore it can be taken outside during the process of differentiation like so:

I thought if is the coefficient of then you would multiply I feel like i'm missing it :/
7. (Original post by ᒍack)
I thought if is the coefficient of then you would multiply I feel like i'm missing it :/
You do. I haven't said anywhere that this isn't what you're doing.
8. (Original post by RDKGames)
You do. I haven't said anywhere that this isn't what you're doing.
Ahh.. Ok, so I did go on to do this and ended up with the answer which was wrong
9. (Original post by ᒍack)
Ahh.. Ok, so I did go on to do this and ended up with the answer which was wrong
Seems to me like you forgot about the at the front.
10. (Original post by RDKGames)
Seems to me like you forgot about the at the front.
I got this by doing which gave me which gave me
11. (Original post by ᒍack)
I got this by doing which gave me which gave me
You essentially say that which is not true.
12. (Original post by RDKGames)
You essentially say that which is not true.
Oops missed that thanks. Can you show me how you'd differentiate it please?
13. (Original post by RDKGames)
You essentially say that which is not true.
ah... I found out the reason I wasn't getting it was because my book doesn't talk about the constant multiple rule.. now what you said makes sense to me :P

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