Practice: Solve the following and show complete solution: 1. A tank shaped like a right circular cone with radius 5 meters and height 15 meters is filled with water. Unfortunately, there is a leak at the bottom of the tank which flows at the rate of cubic 10 meter per minute. If the water level is rising at the rate of 0.25 meter per minute, how fast is the water filled at 6v2 meters deep? 2. Evaluate: lim (1 - cos 1 ) sch(1-z) -1