Write down the product , quotient and chain nukes ( 2 ) ( f ( x ) . g ( x ) )| TO flail 9 ( * ) = sup e ( f ( g ( x ) ) ) = Then use them to differentiate the following : - ( a ) S1 + x 2 ) Make sure you show working but ( b ) x } | + x 2\\ also simplify your answer when you can ! ( I recommend checking answers wiring. ( c ) *( + 1 + x 2 Wolfram alpha . com too - but understand the algebra first . ) X ( d ) 1 4 or 2