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# I must be missing something...? (C4 DIFFERENTIATION) watch

1. I can't do this question and I understand how I would go about doing this question, but am I missing something that I didn't learn when saying I don't know how I would differentiate 4^x in terms of x?
Thanks for any help
2. (Original post by mnaj123)

I can't do this question and I understand how I would go about doing this question, but am I missing something that I didn't learn when saying I don't know how I would differentiate 4^x in terms of x?
Thanks for any help
.

Now use the fact that .
3. (Original post by Zacken)
.

Now use the fact that .
So 4^x differentiates to (x/4)e^(xln4)?
Sorry, I'm really confused
4. (Original post by mnaj123)
So 4^x differentiates to (x/4)e^(xln4)?
Sorry, I'm really confused
No. , so differentiates to

Do you know how to differentiate ?
5. (Original post by Zacken)
No. , so differentiates to

Do you know how to differentiate ?
Yeah, just 2e^2x, right?
6. (Original post by mnaj123)
Yeah, just 2e^2x, right?
Yeah, exactly, so how do you differentiate ? Remember that is just another number, like is?
7. (Original post by Zacken)
Yeah, exactly, so how do you differentiate ? Remember that is just another number, like is?
Rightttt, yeah, I always misinterpret ln values as not being constants.
Thanks.
So it would be:
ln4.e^xln4
= ln4.4^x
Is that right?

Last question, sorry, would I leave it as ln4.e^xln4 in the case of this question to make it easier or in the form ln4.4^x?
8. (Original post by mnaj123)
Rightttt, yeah, I always misinterpret ln values as not being constants.
Thanks.
So it would be:
ln4.e^xln4
= ln4.4^x
Is that right?
First class work. Correct.

In general, for any .

Last question, sorry, would I leave it as ln4.e^xln4 in the case of this question to make it easier or in the form ln4.4^x?
I would use .
9. (Original post by Zacken)
First class work. Correct.

In general, for any .

I would use .
Thanks so much for your help haha
10. (Original post by mnaj123)
Thanks so much for your help haha
My pleasure.

11. .

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