Analysis and Approaches for IBDP Maths Ebook 1 | Page 323

Exercise 61
61.1 (a) 300
(b) 451
(c) 9
61.2 (a) 0
(b) 9.85
(c) 3
61.3 (a) 993
(b) 13
61.4 (a) 1059
(b) 218
Exercise 62
62.1 (a) Refer to solution
(b)
-1
� 5.10 ms
62.2 (a) Refer to solution
(b)
-2
2 ms
62.3 (a) Refer to solution
(b) t � 2.11s or t � 7.89 s
62.4 (a)
(b)
Chapter 15
Exercise 63
63.1
7
2
63.2 5
63.3
28
3
63.4 3 or 6
2
t � 4t
Refer to solution
Exercise 65
65.1 (a) � 30
(b) 50
65.2 (a) 20
(b)
75
2
65.3 (a) � 3
(b) 69
65.4 (a) � 8
(b) �ln 2 � 6
Exercise 66
66.1 (a) 2
(b)
3 2
x � x �8x
� 7
(c) � 1
66.2 (a) 6
(b)
1 3
36x� x � 6
3
(c) 0
66.3 (a)
1 3
9
3 x x
(b) (3, � 18)
(c) (4, � 32)
66.4 (a)
2
�x
� 4x
(b) ( � 2, 4)
(c)
Chapter 16
Exercise 67
� 2 �
��
, � 4 �
� 3 �
Front Page Answers
Exercise 64
64.1
64.2
64.3
64.4
1 (
3 1)
7 2
7 x � �
2
� cos x
1 4 25
� cos 2x
�
8 8
e
4
x
� 1
67.1 2ln10
3
67.2 ln 2
2 �
67.3
67.4
�
6
2
3
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