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Differentiate y=x/sin(x)

This equation has one function of x divided by another function of x, we therefore have to use the quotient rule and is written in the form f(x)/g(x). The quotient rule is therefore f'(x)g(x)-g'(x)f(x)/g 2 (...
RF
Answered by Rowan F. • Maths tutor
25735 Views

What is the integral of ln(x)? Hint: use parts for this integration

We use parts for this integration even though there is only one term! make ln(x)=1ln(x) How to do integration by parts If you have a function that you need to integrate that is two functions of x multiplied ...
JW
Answered by Joseph W. • Maths tutor
7919 Views

Find dy/dx where y=e^(4xtanx)

Here, we must apply both chain and product rules. The chain rule can be used to find the derivative of a function in the form e f(x) , like this one. However it is useful to know that this will result in the...
MK
Answered by Monique K. • Maths tutor
8520 Views

How do you integrate by parts?

This is one of the trickier methods of integration, and it requires some practise. The basic idea is to split a function which would be difficult to integrate into two parts. Differentiating one part and int...
HM
Answered by Harry M. • Maths tutor
5813 Views

How do you multiply out brackets

This is simple as long as you remember FOIL: First Outside Inside Last So, for example, let's multiply out (2x+1)(4x-3) Multiply the first number from each bracket together: 2x times 4x = 8x 2 Then the outsi...
HM
Answered by Harry M. • Maths tutor
14626 Views