Problem 5
Problem 5 said the vectors were n-dimensional. This is now changed to 3-dimensional. (homework PDF updated on 4/11/2012)
Problem 5 (a) had too many cross products and is simpler now. (homework PDF updated on 4/11/2012)
Problem 7
In part (a) change "quadruple" to "raise by a factor of 8". (Also, in part (b) there was a change of wording to make the situation clearer.) (homework PDF updated on 4/11/2012)