been told at what height above the origin the curve will begin, when
. So we write, as the equation of the curve drawn in Fig. 51,
.
Exercises XVI. (See page 262 for Answers.)
(1) Find the ultimate sum of
etc.
(2) Show that the series
etc., is convergent, and find its sum to
terms.
(3) If
etc, find
.
(4) Following a reasoning similar to that explained in this chapter, find
,
(5) If
, find
.