Analysis and Approaches for IBDP Maths Ebook 2 | Page 13

2. (a) Solve the inequality
(b)
Solve the inequality
x �1 �2 x � 5.
3
x �1
� 2x
� 5 .
3
[3]
[4]
1
3. Let
3
f ( x) �2x
� , where x � 0 . Solve the inequality f( x) � 5.
x
[5]
4. Let
f( x)
�
x
3
�14x�8
, where x � 0 . Solve the inequality f ( x ) � x � 2.
x � 4
[5]
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3