Assignment:

1.(4 marks) The average annual increment in the horn length (in centimeters) of bighorn rams born since 1986 can be approximated by

y = 0.17620.1762t² -3.986t + 22.68 _, where t is the ram's age (in years) for t between 3 and 9. Integrate to find the total increase in the length of a ram's horn during this time.

2.(4 marks) The reaction to a new drug is given by y= e^{-t^2}+ 1/t+1 where t is time (in

hours) after the drug is administered. Find the total reaction to the drug from t=1 to

t=9 by letting n =8nand using Trapezoid Rule.