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Differentiate: y = 4x^3 - 5/x^2

To make this equation easier to differentiate it would be easier to write it using index rules as y = 4x^3 - 5x^-2 From here we can begin to differentiate: dy/dx = 3*4x^(3-1) - (-2)*5x^(-2-1) Then finally si...
CB
Answered by Chris B. • Maths tutor
8720 Views

Find the integral of xcosx(dx)

Firstly, let's split the equation "xcosx" into two parts to integrate them separately. 1) Let u=x and dv/dx=cosx 2)As the integral of x is 1, du/dx=1 3)To find v, we integrate cosx to get v=sinx Us...
AF
Answered by Amelia F. • Maths tutor
18108 Views

What narrative methods can you see in this piece?

This is an interesting way to get students thinking about what narrative techniques a writer can use to keep the reader interested. This might be a nice question to explore a students understanding of narrat...
LF
Answered by Lydia F. • English tutor
5484 Views

What do you think you could bring to the course and how do you think the course would benefit you?

This is a simple manner to access how suited the student is to a course and how they feel they will develop in terms of their current skill-set, and what they could learn.
LF
5301 Views

Is this piece in a major or minor key?

This seemingly easy question can be a great way of assessing student's ability to hear major/minor tonalities and ability to read music - e.g. are there any naturals, sharps, or flats on the sheet music? Cou...
LF
Answered by Lydia F. • Music tutor
5069 Views