Apps. and Interpretation for IBDP Maths Ebook 2 | Page 33

4 . Let
3 f( x) � 10 x .
( a ) Find f
1 ( x) .
�
( b ) Write down the range of
Let
g( x) ( 1 log x)
2
� � .
1
f � .
[ 3 ]
[ 1 ]

2
( c ) Express ( g f )( x ) in the form
2 ax �bx � c , where a , b and c are integers . [ 3 ] www . seprodstore . com
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