By the grace of the Almighty Allah my 2nd book “A book on additional mathematics — logarithmic and exponential equations” has been published on Amazon. This book covers logarithmic and exponential functions suitable for Cambridge IGCSE and O level students. International General Certificate Secondary Education guidelines are followed. I am thankful to my wife Jahanara Chowdhury who inspired me to publish this book. I am grateful to Sue Pemberton who wrote the book “Additional Mathematics (Cambridge IGCSE and O Level)”. I have written this book for the students who face difficulties to solve mathematical problems of logarithmic and exponential functions. I am dedicating this book to my nephews and nieces, Durdana, Ekebana, Aadina, Ijtihad, Tahmid, Tamjid, Diana, and Labiba. This book is also dedicated to all the students who like to solve mathematical problems.
This book contains following chapters — History of logarithms, logarithms to base 10, logarithms to base a, the laws of logarithms, solving logarithmic equations, solving exponential equations, change of base of logarithms, natural logarithms, practical applications of exponential equations, the graph of simple logarithmic and exponential functions, the inverse of logarithmic and exponential functions, and IGCSE exam questions. Logarithmic and exponential functions — such problems and solutions are explained in video tutorials on a YouTube channel “Channel WebTube“.