Answers to the Practice First Test

Mathematics 3B, Section 1

1.
(a), (b), and (d)   48.
(c)   18(n + 1)/n + 30.

2.
sqrt{2}.

3.
-x + ln|(2 + x)/(2 - x)| + C.

4.
pi/2.

5.
k = 6.

6.
2 - 26/e^4 cc.   (This is about 1.524 cc.)

7.
3 sqrt{2}/sqrt{pi}.

Reminder: I will hold a "last chance" question-and-problem session on Tuesday, April 26, 5:30 pm, in MS 5200. And questions can always be posted on our virtual office hours board.