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Un = n² + 2
U5 = 5² + 2
= 25 + 2
= 27
jawabn soal B
Un = 3n - 2
U5 = 3(5)- 2
= 15 - 2
= 13
Jawabn soal C
Un = 1/2 ( n - 1 )
U5 = 1/2 ( 5 - 1 )
= 1/2 . 4
= 2
jawabn soal D
Un = n + 5
U5 = 5 + 5
= 10.