1)9,7,8,6,7 2)1,3,5, 3)4,6,5,7,6, 4)3,6,4,7,5, 5)1,5,2,6,3,найди закономерность и продолжи ряд чисел

1.) 9,7,8,6,7,5,6,4,5,3,4,2,3,1,2,0.. 2.) 1,3,5,7,9,11,13... 3.) 4,6,5,7,6,8,7,9,8,10,9,11.. 4) 3,6,4,7,5,8,6,9,7,10,8.. 5)1,5,2,6,3,7,4,8,5,9,6,10,7,11,8,12..