7 5 9 3 2 July 8, 2019 16 32 64 128 7 5 9 3 22 7 6 5 9 3 2 7 5 9 8 2 3 1 7 9 * 5 2 3 1 3 5 7 9 2n 1 formula 1 3 5 7 9 2n 1 sum formula 1 3 5 7 9 2n 1 7 3 2k )+ 9 k 5 9 3 7 х 5 22 5 9 х 3 2 2 7 7 dfrac 2 9 3 dfrac 5 6 X 4 7 5 9 2 3 5 7 4 9 2 3 X 7 5 3 9 2 3 3 5 7 9 soma 20
