Errors on old Math 102 Exam Solutions:

- 06Spring, Exam 2, the solution written fails to consider cases where x, y, and/or z might be zero.  The absolute maximum is actually attained at the point where x=1, y=z=0.

- 0607Spring, Exam 2, there are computational errors in the solution to problem 1a

- 0607Spring, Exam 3, there is an arithmetic error on number 5; the answer should be 11, not 7.

- 0708Fall, Exam 2, there is a computational error in the bottom left element of the solution matrix in #2a.

- 0708Spring, Exam 3, on problem 4 there is an error in the analysis of edges E1 and E2.  The easier observation is simply that the function is identically zero there.

- 0708Spring, Exam 1, on problem 1 the second component of the solution vector should be "5-2z".

- 0809Fall, Exam 2, on problem 4 the coefficient of one of the terms should be 162/343 instead of 112/343.  (This makes no difference in the answer to the question though.)

- 0809Spring, Exam 2, on problem 3b, the equation should have been y-2x=-3, and so it is the g=-3 level set.  The function g(x,y)=y-2x is correct as shown.

- 0809Spring, Exam 3, there are arithmetic errors in the solution to number 5.

- 0910Fall, Exam 3, problem 2, the arithmetic is wrong in the computation of the Hessian matrix.  The solution is unaffected though.