INTRODUCTION: Certain numbers can be expressed as ratios of two integers and such numbers are called rational numbers. However, some numbers cannot be expressed as ratios of two integers. Examples of such numbers are √2 ,3√5 ,4√7, etc. Such numbers are said to be irrational and irrational numbers which are roots of rational numbers are called SURDS
Introduction
Rationalizing Denominators
Multiplying and dividing surds
Logarithms
In simple terms, a logarithm is the power to which a number must be raised in order to get some other number. For example, the base ten logarithm of 100 is 2, because ten raised to the power of two is 100: log 100=2.
Sequence and Series
Under sequence and series, you would learn about progressions such as the Arithmetic progression (Linear Sequence) and Geometric progression (Exponential Sequence). You would learn how to find the nth term and also the sum of n terms in both progressions
Approximation and Error
An approximation error can occur because the measurement of data is not always precise due to the instruments used. The approximation error is the difference between an exact value and some approximation of it.
Learning about percentage error
Approximation and errors
Commercial Arithmetic
Commercial arithmetic is a branch of mathematics that deals with money matters. Under this topic, you would learn about simple interest, compound interest, and appreciation and depreciation.