1 6 x 15 2 July 8, 2019 16 32 64 128 1 2 6 15 x 56 92 6 1 2j x 15 15 x 6 1 2 jj √ 7x 1 √ 6 x √ 15 2x 15 x 6 1 2 j 11 15 x 2 1 6 6 1 2j x 15 h2 1 2 5 6 x 12 15 1 2x 6 x 15 )= 12 1 6x 15 2 3x 1 2 6 15 x 56 92 series 1 2 10x 6 )= x 15 1 2 2x 6 )= 15 x 1 2 x 15 6 3 4 15 6 x 1 25