Tuliskan 5 suku pertama dari barisan bilangan berikut : A. Un = 2 pangkat n - 1 B. Un = 2(n pangkat 2-10) C. Un = 3-n per 4 D Un = 1 per 2 pangkat n + 6n

A. Un = 2^n-1
U(1)
= 2^1-1
= 2^0
= 1
U(2)
= 2^2-1
= 2^1
= 2
U(3)
= 2^3-1
= 2^2
= 4
U(4)
= 2^4-1
= 2^3
= 8
U(5)
= 2^5-1
= 2^4
= 16

B. Un = 2^n-10
U(1)
= 2^1-10
= 2^-9
= 1/2^9
=1/512
U(2)
= 2^2-10
= 2^-8
= 1/256
U(3)
= 2^3-10
= 2^-7
= 1/128
U(4)
= 2^4-10
= 2^-6
= 1/24
U(5)
= 2^5-10
= 2^-5
= 1/32

C. Un = (3-n)/4
U(1)
= 3-1/4
= 2/4
= 1/2
U(2)
= 3-2/4
= 1/4
U(3)
= 3-3/4
= 0/4
= tidak terdefinisikan
U(4)
= 3-4/4
= -1/4
U(5)
= 3-5/4
= -2/4
= -1/2

D. Un = 1/2^n+6n
U(1)
= 1/2^1+6(1)
= 1/2^1+6
= 1/2^7
= 1/128
U(2)
= 1/2^2+6(2)
= 1/2^14
= 1/16384
U(3)
= 1/2^3+6(3)
= 1/2^21
= 1/2^2097152
U(4)
= 1/2^4+6(4)
= 1/2^28
= 1/2^268435456
U(5)
= 1/2^5+6(5)
= 1/2^40
= 1/1099511627776

krna yg ditnya 5 suku pertama..

tinggal msuk"in aja 1 smpai 5..

jika jawbn berbeda, tolong ditnyakn.. dan dihrapkan untuk memperjelas soal

smoga membantush_!