
Grade 11Differential Calculus
If A and B are two fixed points on a fixed circle and 'P' is a moving point on the above circle , angle APB=450 , AB=8,then the range of PA*PB=____________________
If A and B are two fixed points on a fixed circle and 'P' is a moving point on the above circle , angle APB=450 , AB=8,then the range of PA*PB=____________________



