7.1, #6. f(x) = Öx, so

F(x) = ó
õ
Öx dx = (2/3)x3/2+C.
The condition F(0) = 0 holds if C = 0.


7.1, #8. f(x) = 5-(x6/6)-x7, so

F(x) = ó
õ
(5-(x6/6)-x7) dx = 5x-(x7/42)-(x8/8)+C.
The condition F(0) = 0 holds if C = 0.


7.1, #9. f(x) = sinx, so

F(x) = ó
õ
sinx dx = -cosx+C.
The condition F(0) = 0 holds if -1+C = 0, or equivalently, C = 1.


7.1, #12.

ó
õ
(x3/2+x-3/2) dx = (2x5/2/5)-2x-1/2+C


7.1, #14.

ó
õ
y2+1
y
 dy = ó
õ
(y+y-1) dy = y2
2
+ln|y|+C.


7.1, #16. The derivative of ex is ex, but e1 = e, so to satisfy F(1) = 0 we need to take F(x) = ex-e.


File translated from TEX by TTH, version 2.00.
On 15 Aug 1999, 15:33.