Ответ:
1) 9*n - 7
2) 5 * 3^(n-1)
Объяснение:
1) x1 = 2 xn= xn-1 + 9
x2 = 2 + 9
x3 = 2 + 9 + 9
xn =2 + 9 * (n -1) = 9*n - 7
2) x1 = 5 xn = 3 * xn-1
x2 = 3 * 5
x3 = 3 * 3 * 5
xn = 5 * 3^(n-1)
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Ответ:
1) 9*n - 7
2) 5 * 3^(n-1)
Объяснение:
1) x1 = 2 xn= xn-1 + 9
x2 = 2 + 9
x3 = 2 + 9 + 9
xn =2 + 9 * (n -1) = 9*n - 7
2) x1 = 5 xn = 3 * xn-1
x2 = 3 * 5
x3 = 3 * 3 * 5
xn = 5 * 3^(n-1)