Acute angles
Here we shall look very briefly at acute angles. Among different types and sizes of angles is the acute angle. Acute angles smaller than a right angle (less than 90°) are called acute angles....
Author: admin
Addition formulae
This section explores using the addition formulae. You need to be able to use the addition formulae. Addition formulae explores trigonometric functions of sums of angles α ± β in terms of functions of...
Factor Formulae
This page explores factor formulae. The factor formulae can be used to express sums and differences of sines and cosines as products of sines and/or cosines. The factor formulae shown below are derived from...
Numerical methods
This chapter explores numerical methods. It covers using graphical methods to find the number of roots of the equation f(x)=0, proving whether a root lies within a given interval, using iteration within a given...
Exponential and log functions
Exponential and log functions This chapter explores exponential and log functions. It covers sketching simple transformations of the graph of y=ex, sketching simple transformations of the graph y=lnx, solving equations involving ex and lnx,...
Sum to infinity geometric series
This is continuation from the geometric series chapter. This section explores geometric series. To explain sum to infinity consider the following series; For the series above no matter how many terms of the series...
Geometric Sequence and Series
This article explores geometric sequences and series. It covers how to recognise a geometric sequence and series, finding common ratio, calculating the nth term of a geometric sequence, finding the sum of a geometric...