Give a recursive definition of the sequence (4h), n: 1, 2, 3, if 9. 41-2 and un+-an-4 for all n 1 41 2 and un1-an+4 for all n 21 0 41-2and un+1=an + 4 for all n20 w1 = 2 and n+1=un+4 + 1 for all n21 10 0 41:0, 42-2, un-un-2 for all n20 O "n = "n-2 for all n22 O 41 0, u2 2, un-un-2 for all n23 41-0, 42-2, un- un-2 for all n 2 2 O u2 2, un-u-2 for all n2 3