Grant Gustafson at math.utah.edu

2250-1 [7:30am] and 2250-2 [10:45am]

2250 Spring 2007
Updated: Monday February 19: 11:09AM, 2007 Today: Friday April 26: 06:43AM, 2024

Grader's Comments on Dailies

1.4-18: integral of 1/(1+y^2) is arctan(y)+C.
1.4-22: (1) Correct algebra gets y'/y = (4x^3-1)
1.4-22: (2) Use the initial condition to get C=-3.
1.4-26: (1) Integration of polynomials expected.
1.4-26: (2) Integral of 1/y^2 is -1/y+C.
2.3-10: (1) Solve for t if y=0.
2.3-10: (2) Determine altitude when parachute is opened.
2.3-20: (1) Solve for the height.