1 2 x 9x 6 July 8, 2019 16 32 64 128 9x 2 1 6x )=- x 6 1 2 * 2x 6 2 3 * 9x 6 1 2 x 18 )= 4 2x 6 )- 9x X 2 13x 1 =- 9x 6 3x 2 x 9x 2 6x 1 Integral x 1 )/( 9x 2 6x 5 9x 2 6x 1 )-( x 2 12x 36 Y x 2 9x 6 y 3x 1