- 2.
- is the rate of change of population growth rate as a function of average per capita wage, in people per thousand per dollars per year. is the rate of change of average per capita wage as a function of mine production rate, measured in dollars per year per tons per year. is the rate of change of population growth rate as a function of mine production rate, measured in people per thousand per tons per year.
- 3.
- (b) . (c) . (d) . (f) . (g) . (h) . (j) . (k) . (l) .
- 4.
- (b) . (d) . (f) . (l) .
- 5.
- (c) . (f) .
- 6.
- (a) (iv)
- 7.
- If , let . Then .
- 8.
- .
- 9.
- -42
- 11.
- 0
- 15.
- .
- 18.
- If is an even function, then
. Differentiating,
we get
, and is an
odd function.

Jason Grout 2003-02-11