Exercises XVII. (p. 205.)
(1) .
(2) .
(3) .
(4) .
(5) .
(6) .
(7) .
(8) by division. Therefore the answer is . (See pages 199 and 201.)
(9) .
(10) .
(11) .
(12) .
(13) .
(14) .
(15) .
(16) .
(17) .
(18) .
Exercises XVIII. (p. 224.)
(1) Area ; mean ordinate .
(2) Area of .
(3) Area ; mean ordinate .
(4) Area ; mean ordinate .
(5) , .
(6) Volume .
(7) .
(8) .
(9) Volume ; area of surface (from to ).
(10) , .
(12) Arithmetical mean ; quadratic mean .