1. (3 marks) Let f\"(.r) =x4r\"+.r+1 Find f(.r). 2. (3 marks) Determine the value of 23:0 sin(%n). 3. (a) (2 marks) Express the area under the curve 3; = 3:5 from 0 to 2 as a limit. (b) (1 mark) Evaluate the limit