Top answers


How do you add indices?

When working with indices it is important to give examples. When the question is a times, you add the indices, and when it is a divide, you take the indices away. For example: 3(2) X 8(3) = 24(5) You times 3...
AC
Answered by Alexandra C. Maths tutor
11699 Views

How do I use numerical methods to find the root of the equation F(x) = 0?

Generally you will be asked to find the root of an equation of the form F(x) = 0. In my answer below I will only touch on graphical methods, but will go into deeper detail on showing that a root lays in a gi...
MV
Answered by Mathew V. Maths tutor
18642 Views

Whats the difference between the three main trigonometric functions?

Sin(x), Cos(x) and Tan(x) are very useful functions and can be used to solve algerbraic problems where the aim is to find the size of an angle or a size. Sin(x) = Opposite/Hypotenuse Cos(x) = Adjacent/Hypote...
MG
Answered by Michael G. Maths tutor
5122 Views

How do I know which trig formula to use in the exam?

When faced with a problem that involves triangles, there is a simple flowchart you can follow to determine which formula or identity you need to use! Firstly you must ask yourself whether the triangle has a ...
JO
Answered by Joseph O. Maths tutor
14081 Views

Solve algebraically 6a + b = 16 and 5a - 2b = 19

This is a simultanious equation. As there are two unknown variables, it is impossible to find both a and b just using one of the equations. To make it possible to work out the unknowns, we need to have just ...
KH
Answered by Kate H. Maths tutor
6493 Views