Learn about composite rotation matrices and relative orientations in this 27-minute video lecture from NPTEL-NOC IITM. Explore the fundamental concepts and applications of these important topics in spatial kinematics and robotics. Gain insights into how composite rotation matrices are constructed and used to describe complex rotational transformations. Understand the significance of relative orientations in defining the spatial relationships between different coordinate frames or objects. Enhance your knowledge of advanced robotics and mechanical engineering principles through this concise yet comprehensive presentation.