You are Here: Home >< Maths

# differentiating e watch

1. stuck on a question, just need to know:
so if y=e^kx
dy/dx is ke^kx

does that mean if y=ae^kx
then dy/dx= (ak)e^kx?
2. (Original post by Toasticide)
stuck on a question, just need to know:
so if y=e^kx
dy/dx is ke^kx

does that mean if y=ae^kx
then dy/dx= (ak)e^kx?
Yes.
3. Yes, the a is a constant.
4. ah thanks for the quick replies

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 31, 2017
Today on TSR

### University open days

Wed, 21 Nov '18
• Buckinghamshire New University
Wed, 21 Nov '18
• Heriot-Watt University
Wed, 21 Nov '18
Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams