bantu dong kaka.ini satu doang ko gabanyak

Un = - [tex] \frac{1}{2n} (3n)^{n-1} [/tex]

U1 = - [tex] \frac{1}{2(1)} (3(1))^{1-1} [/tex]
U1 = - [tex] \frac{1}{2} (3)^0 [/tex]
U1 = - [tex] \frac{1}{2} [/tex]

U2 = - [tex] \frac{1}{2(2)} (3(2))^{(2)-1} [/tex]
U2 = - [tex] \frac{1}{4} (6)^{1} [/tex]
U2 = - [tex] \frac{6}{4} [/tex]
U2 = - [tex] \frac{3}{2} [/tex]

U3 = - [tex] \frac{1}{2(3)} (3(3))^{(3)-1} [/tex]
U3 = - [tex] \frac{1}{6} (9)^{2} [/tex]
U3 = - [tex] \frac{81}{6} [/tex]
U3 = - [tex] \frac{27}{2} [/tex]

U4 = - [tex] \frac{1}{2(4)} (3(4))^{(4)-1} [/tex]
U4 = - [tex] \frac{1}{8} (12)^{3} [/tex]
U4 = - [tex] \frac{1728}{8} [/tex]
U4 = -216

U5 = - [tex] \frac{1}{2(5)} (3(5))^{(5)-1} [/tex]
U5 = - [tex] \frac{1}{10} (15)^{4} [/tex]
U5 = - [tex] \frac{50625}{10} [/tex]
U5 = -5062,5