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How to calculate the inverse of a 2x2 matrix

Suppose we have a matrix M = [{a b} {c d}]

The inverse of a matrix M is any matrix, that when multiplied by M, gives the unit matrix (I) - in this case: [{1 0} {0 1}]

First, we have to d...

AR
Answered by Alex R. Maths tutor
11452 Views

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...

CB
Answered by Chris B. Maths tutor
8308 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...

AF
Answered by Amelia F. Maths tutor
17209 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 nar...

LF
Answered by Lydia F. English tutor
5199 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
4703 Views

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