Question

Dik: a=5
b=6
Dit: a.)rumus suku ke n
b.) U10
c.) S10

Answer 1

Verified answer

A. 5 + 6(n - 1)
6n - 1

b. U10 = 6.10 - 1
= 60 - 1
59

S10 = 5(5+59)
= 5(64)
=320

Answer 2

A = 5
b = 6

a)
Un = a - b + bn
Un = 5 -6 + 6n
Un = 6n -1

b)
U10 = 6x10 - 1 = 59

c)
S10 = 10/2 x (5+59)
= 5 x 64
= 320