This book is specifically tailored to the ISC syllabus, ensuring that all the topics covered are relevant to the curriculum. The content is presented in a simple and lucid language, enhanced with numerous illustrations to make complex concepts easy for students to grasp. For practical application, each chapter provides a large number of solved problems with detailed explanations, along with additional practice problems and their answers. The inclusion of numerous short-answer questions with solutions at the end of each chapter further helps students prepare for their examinations.