( a) Find a power series representation for the function : f ( x ) = _ 1 - 3 X D ( b ) Use your answer from part ( a ) to find a power series representation for the function 9 ( x ) = 1 ( 1 - 3 x ) 2 ( c ) use your answer from part ( b ) to find a power D series representation for the function h( x ) = * 3 ( 1 - 3 x ) 2