7.1) 1,3,5,6,7,9,12,13,15,17,18,26,29,37,38,41

7.2) 1-3,6,9,12,13,14,17,20-23,25,28,29,31,32,41-43

7.3) 2,4,6,8,11,13,17,20,22,23,24

7.4) 1-7, 9-12,15,18, 19, 22, 33, 36, 39,43,47,48,51

7.5) 1-6,9,10,13,14,16,18,20,22,25,26,27,32,35,37,39,43,47,51

7.6) 1-4, 7-10,13,15,16,19,21,23,24,27

7.7) 6,10,11,13,19,21,22 (see example 7 b) ,31,32

7.8) 1,2,5,7,9,12,13, 16, 19,21,25,27,29,31,34

8.1) 7,10-12,15, 33, 34a, 37

8.2) 1a,3a,5,7,10,11,13,14

8.3) 21-31,35

11.1) 1-7 odd, 23-35 odd, 41,43,49, 73,75,77

11.2) 1-4,15,16,17-45 odds

11.3) 1,5,7,9,11,13,15,21,22,23,27

11.4) 4,6,7,9,11,15,17,19,21,23,27,31

11.5)3,5,9,11,13,15,16,17

11.6) 1,3,5,7,9,11,13,17,19,21,23 (note: limit as n goes to infinity of (1+1/n)^n = e) ,25

11.7) 1-15 odd, 19-21 odd

11.8) 1,2,3,5,7,8,11,19,23,25,29,30

11.9) 1,2,3,5,7,9,13,15,16,17,19,25,26,28

11.10) 1,3,4,5,7 (like cosine that I did terms will drop out), 8,9,13,15,17,29-34,47-49,55,56,59,62

11.11) 3,5,7,14,15,16,20

10.1) 1-9, 11,15

10.2) 1,3,5,17,19,25 (use 0, pi/4,pi,2,2pi/4 etc for your graph),31,34 (these last two are area ones! for 34 find the area of one section then multiply by 4), 41,42,62 (IBP needed for the integration!), 62,63,65

10.3) 1,3,5,7,9,11,15, 17(multiply through by r on both sides first then complete the square for the x^2 + 2x), 19 (use an identity for cos2theta to start),21,23,25,27,55,57,61(use the identity cos2x=cos^2x+sin^2x when working this out for the horizontals and sinxcosx=sin2x/2 for the verticals)