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How do you differentiate a function comprised of two functions multiplied together?

The product rule is useful when you’re dealing with a function comprised of two functions multiplied together. Generally, if you have a function of the form y = f(x)g(x), then the derivative of the function ...
EG
Answered by Elliot G. • Maths tutor
10041 Views

I just wanted to expand on what sort of information I can be of help with

I am a 3rd year medical student at Imperial College London. While applying, I did the UKCAT, BMAT, MMI and a panal interview. So I think its fair to say that I've done it all ;). I can be of help in all aspe...
AM
2146 Views

Solve this simultaneous equation: 5x+6y=3 and 2x-3y=12.

Firstly, I will provide a mark scheme and then a full explanation underneath. 5x+6y=3. (1) 2x-3y=12. (2). (5x+6y=3)+(2(2x-3y=12)). (5x+6y=12)+ (4x-6y=24). 9x=27. x=3. Put x is (1) 5(3)+6y=3=15+6y=3. 6y=-12. ...
AM
Answered by Ashni M. • Maths tutor
12990 Views

solve this equation: 4(x-5)=x+7

Firstly, I will provide a 'mark scheme' type answer. Then there is a full explanation available underneath. 4 (x-5)=x+7. 4x-20=x+7. 3x=27. x=9. A full explanation: 4(x-5)=x+7 (expand the equation on the left...
AM
Answered by Ashni M. • Maths tutor
11486 Views

How do I find the equation of a line that is perpendicular to another line?

Okay so let's say that the equation of the line you are given is y=2x+3 and you are told this new line must pass through the coordinates (2,4). The first thing we need to do is check we understand every bit ...
EH
Answered by Evie H. • Maths tutor
3863 Views