Question

Tentukan rumus suku ke n dan suku ke 10 barisan bilangan
1,4,16,24....

Answer 1

Un = a.r^(n-1)
a = 1
r = 4/1 = 4
Un = 1.4^(n-1) = 4^(n-1)
U10 = 1.4^(10-1) = 4^9 = 2^18 = 262144