Top answers

All subjects
All levels

What are complex numbers?

A complex number is a number made up of a real and imaginary part. 

CW
Answered by Chris W. Maths tutor
6328 Views

How do you prove that (3^n)-1 is always a multiple of 2?

Proof by Induction: The method of Proof by Induction is a simple but very powerful t...

SA
Answered by Saleem A. Maths tutor
19366 Views

Describe the structure of the cell membrane

The cell membrane is made up of something called the phospholipid bilayer. This is exactly what it sounds like:a hydrophilic phosphate head on the outside and a hydrophobic lipid on the inside. 

<...
TW
Answered by Thomas W. Biology tutor
5905 Views

Derive the escape velocity from the surface of a planet with radius, r, and mass, M.

This question is about converting kinetic energy into gravitational potential energy. Escape velocity is the speed required to leave the gravitational field of a mass, in this case it's a planet. In o...

TR
Answered by Thomas R. Physics tutor
20117 Views

When and how to use the imperative

La forme simple de l’impératif    

 

The present imperative is used to give an order or to offer advice.

 

In the imperative mood, th...

EJ
Answered by Eliza J. French tutor
3822 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning