MATH 3200-001: ELEMENTARY DIFFERENTIAL EQUATIONS
Fall 1997, University of Colorado Denver
Instructor: Prof. Andrew V. Knyazev

Test 2

1. Find the value of Wronskian of the following set of functions x, sin x, and cos x when x=0:
   1. -1
   2. 0
   3. 1
   4. 2
   5. None
2. Which of the following sets of functions is linearly dependend:
   1. 0, x, sin x
   2. 1, x, cos x
   3. x, cos x, sin x
   4. 1+x, x, ln x
   5. None
3. Find a general solution to
   1. 
   2. 
   3. 
   4. 
   5. None
4. Find a general solution to
   1. 
   2. 
   3. 
   4. 
   5. None
5. Find a general solution to
   1. 
   2. 
   3. 
   4. 
   5. None
6. Find a general solution to
   1. 
   2. 
   3. 
   4. 
   5. None
7. Find a general solution to
   1. 
   2. 
   3. 
   4. 
   5. None
8. Find an annihilator of
   1. 
   2. 
   3. 
   4. 
   5. None