" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
U1=1.2+1
u1=3
u5=5.2+1
u5=11
sn=n/2(a+un)
s5=5/2(3+u5)
s5= 5/2(3+11)
s5= 5/2(14)
s5= 5.7
s5=35
maaf kl salah
= 2+1
=3
U2 = 2.2 + 1
=4+1
=5
U3 =3.2 + 1
=6+1
=7
U4 =4.2 + 1
=8 + 1
=9
U5=5.2 + 1
=10 + 1
= 11
Jadi,lima suku pertama dari barisan dengan rumus Un=n2+1 adalah 3,5,7,9 dan 11