20. (10 points) If y = J V 9sint - 1 dt, find the length of the curve from x = " to a = 3 B i U Font Family - AA - A21. (10 points) A company sells 30000 units of a new product in the first year. In each succeeding year, it expect to sell 50 percent of the amount the year before. How many of the product can the company eventually expect to sell? B i U Font Family - AAA D 5 . E . E .0 9