Chris has worked throughly with my son on his IB past papers. I am extremely impressed with his professional approach to teaching, his quick response to my messages and his helpfulness in finding a solution with regard to timing, days, etc. He is very knowledgeable about the workings of MyTutorWeb, which put me at ease with the whole process. Thank you Chris! :o)

Sheila, Parent from Genève

Why limit yourself to someone who lives nearby, when you can choose from tutors across the UK?

By removing time spent travelling, you make tuition more convenient, flexible and affordable

We've combined live video with a shared whiteboard, so you can work through problems together

All your tutorials are recorded. Make the most out of your live session, then play it back after

Usually we cover both subject knowledge and exam technique, although that can change depending on each individual student. Then we go through diagrams, and they ask questions, and we go from there.

Lots of students say that the classes are too big in school, or that they don't have time to ask teachers after lessons. In my tutorials, we take time to explore things in a little in a bit more detail.

I always look up the board my students are taking so the lessons are really relevant. Then we go through past papers or set texts, whatever the student finds helpful.

I use the shared whiteboard. We make diagrams together and label them, and often the student prints it off because they know it's right and they completely understand it.

After tutoring one girl went and told all her friends the new explanation I gave her. And she was so excited about what she wrote in the exam she emailed me immediately afterwards.

There was one girl who had her exam on Monday. She wanted tuition on Friday, Saturday and Sunday beforehand. It was very intense, but she said the exam went well.

Polar and coordinase complex numbers are two different ways of represent the same complex numbers.
The polar way uses the following formula: M*e^(angle*j), where M is the modulus of the complex number and can be obtained by Pithagoras´Theorem from the vector coordinates of the number. On the other hand, the angle of the number is calculated by the arctan(vertical coordinate/horizontal coordinate).
The cartesian way uses also the modulus and that angle, by in a different way. It is determined by applying M*cos(angle)+j*M*sin(angle)
And then I would show to the student a numerical example and we would analysed together some different exceptions.

Answered by LORENZO M.

Studies MECHANICAL ENGINEERING at Bath

dy/dx = 3x+1/ -2y-3x-1

Integration by parts is not only a very useful techinque for integrating, but it is also one of the techinques that appears more in the IB Mathematics exams. The most important step is to choose the part of the integrand that works better for u or f(x), as a right choice will save you a lot of time (and time is everything in the IB!). Whenever you are in doubt, choose u or f(x) to be the following:
1. The LOgarithm. If there is none,
2. The ROot. If there is none,
3. The POlynomial. If there is none,
4. The Trigonometric function. If there is none,
5. The Exponential function.
To remember this rule, think about the sentence "LOve ROasted POtatoes Till the End", and its initials will tell you the order of the functions you need to look for to be u or f(x)!!

Answered by Xell B.

Studies Mathematics and Biology at Edinburgh

If the two graphs intersect, it means that they will share the same y and x coordinates at one particular point. (I will draw diagram to show point).
Therefore, you can set f(x)=g(x) so that x^2 -ax +a -1 = x-5
Then, x^2 -x(a+1) +a + 4 = 0
If they only intersect at one particular point, this means that the previous quadratic equation has only one solution. This is translated into an equation in terms of the determinant so that the determinant must be 0.
(If necessary, I will explain the difference number of solutions that one gets for different determinants).
Then, one requires b^2 - 4ac = 0 , where b is the coefficient multiplying the x, a is the coefficient multiplying the x^2 and c is the coefficient with no x in the previous equation.
This leads to (a+1)^2-4(a+4)=0 which is a quadratic equation in a:
a^2 -2a -15 =0 , which, using the quadratic formula, has solutions a= 5 and a=-3.

Answered by Andres O.

Studies PhD in Theoretical Particle Physics at Durham

In a real 2-Dimensional function f(x) on the X-Y plane, we have the following relations between these concepts:
i) f'(x) is continuous if and only f(x) is differentiable; in fact, the continuity of f'(x) ensures that there are no points where the derivative tends to infinity, or has a possible multiple value. (picture as additional explanation)
ii) f(x) differentiable does not imply f(x) continuous, since we may have a function that is shifted up at a certain point, so it keeps to be differentiable, since there is no double derivative at that point, but the limits of x that tends to that point are different. (picture that function using a grapher)
iii) f(x) continuous does not imply f(x) differentiable. In fact a simple counter example could be f(x)=|x|. At x=0, f(x) is continuous, checkable using the definition. But the derivative assumes a double value at x=0, f'(0)=1 and f'(0)=-1. Therefore we found a counter-example.

An implicity function is one that is not expressed in the form y = f(x) such as the equation in the question. Instead of rearranging the equation to make y the subject, the equation can be differentiated using a technique called implicity differentiation. This involves differentiating each term on both sides of the equation. Differentiating x^3 will give 3x^2 and differentiating 34 will give 0. However differentiating y^4 will give (4y^3) X (dy/dx). This is achieved by using the chaing rule whereby d(y^4)/dx = (d(y^4)/dy) X (dy/dx).

Answered by Olavo M.

Studies Chemical Engineering at Edinburgh

Company information

Popular requests

Are you there? – We have noticed a period of inactivity, click yes to stay logged in or you will be logged out in 2 minutes

Your session has timed out after a period of inactivity.

Please click the link below to continue (you will probably have to log in again)

Every tutor on our site is from a **top UK university** and has been** personally interviewed** and ID checked. With over 7 applications for each tutor place, you can rest assured you’re getting the best.

As well as offering **free tutor meetings**, we **guarantee every tutor who has yet to be reviewed on this site,** no matter how much prior experience they have. Please let us know within 48 hours if you’re not completely satisfied and we’ll **refund you in full.**

Every time a student and parent lets us know they have enjoyed a tutorial with a tutor, one 'happy student' is added to the tutor's profile.

mtw:mercury1:status:ok

Version: | 3.44.2 |

Build: | ed80b278b2ad |

Time: | 2017-05-23T11:31:45Z |

Your message has been sent and you'll receive an email to let you know when responds.

Tutors typically reply within 24 hours.

Tutors typically reply within 24 hours.

Thanks , your message has been sent and we’ll drop you an email when replies. You should hear back within 24 hours.

After that, we recommend you set up a free, 15 minute meeting. They’re a great way to make sure the tutor you’ve chosen is right for you.

Thanks , your message has been sent and we’ll drop you an email when replies. You should hear back within 24 hours.

After that, we recommend you set up a free, 15 minute meeting. They’re a great way to make sure the tutor you’ve chosen is right for you.

**Limit reached ***(don't worry though, your email has still been sent)*

Now you've sent a few messages, we'd like to **give the tutors a chance to respond**.

Our team has been notified that you're waiting, but please contact us via

support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** if you're in a rush.

**Office hours are 8am to 7pm**, Monday to Friday, and we pick up emails on weekends.

Thanks,

The MyTutor team

**Limit reached ***(don't worry though, your email has still been sent)*

Now you've sent a few messages, we'd like to **give the tutors a chance to respond**.

Our team has been notified that you're waiting, but please contact us via

support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** if you're in a rush.

**Office hours are 8am to 7pm**, Monday to Friday, and we pick up emails on weekends.

Thanks,

The MyTutor team

**Limit exceeded ***(Your message will not be sent)*

You should have recieved a notification with your previous message, and **our team have also been notified that you're waiting.**

If you're in a rush, please contact us via support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** .

**Office hours are 8am to 7pm**, Monday to Friday. We also pick up emails on weekends.

Thanks,

The MyTutor team

**Limit exceeded ***(Your message will not be sent)*

You should have recieved a notification with your previous message, and **our team have also been notified that you're waiting.**

If you're in a rush, please contact us via support@mytutor.co.uk or **drop us a call on +44 (0)203 773 6020** .

**Office hours are 8am to 7pm**, Monday to Friday. We also pick up emails on weekends.

Thanks,

The MyTutor team