You are Here: Home >< Maths

# C4 Differential Equations watch

1. My teacher gave me this worksheet to do but honestly I don't even know what the questions are asking me. Can someone help explain it?

Attached Images

2. (Original post by isteven)
My teacher gave me this worksheet to do but honestly I don't even know what the questions are asking me. Can someone help explain it?

didn't your teacher explain how to do these questions?
3. (Original post by TeeEm)
didn't your teacher explain how to do these questions?
We basically went through the differential questions in the edexcel c4 book. But the wording of these questions I do not recognise, she gave us the sheet to do as homework but I don't understand this.
4. (Original post by isteven)
My teacher gave me this worksheet to do but honestly I don't even know what the questions are asking me. Can someone help explain it?
What is it about the wording that confuses you?

Take the first one, for example, dx/dt = kx. To 'write x in terms of t', you want to solve it so have something in the form x = *some stuff with t's in*. You just solve it in the normal way i.e. using the 'separation of variables' method. The textbook probably refers to finding the 'general solution', which is what this example is asking you for.

I'd say have a go at the first one, then if you get stuck come back with what you've tried. It's hard to give useful advice if we can't see what exactly you're struggling with.
5. (Original post by isteven)
We basically went through the differential questions in the edexcel c4 book. But the wording of these questions I do not recognise, she gave us the sheet to do as homework but I don't understand this.
Do you recognize the phrase "separation of variables"? These questions are fairly standard examples of that technique - in fact 1(a) is probably given as an example in your book somewhere, and you can probably almost recognize what sort of function differentiates to give a multiple of itself
6. No worries won't bother doing it as it was just extra work, doing the wrong paper as homework lol

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 27, 2015
Today on TSR

### Buying condoms for the first time - help!

Discussions on TSR

• Latest
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

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE