Ditentukan barisan 4, 7, 10, 13, 16, 19,barisan aritmatika​

Jawaban:

Barisan Dan Deret

a = 4

b = 7 – 4 = 3

.

Un = a + (n – 1) × b

.

U7 = 4 + (7 – 1) × 3

U7 = 4 + 6 × 3

U7 = 4 + 18

U7 = 22

.

U15 = 4 + (15 – 1) × 3

U15 = 4 + 14 × 3

U15 = 4 + 42

U15 = 46

.

U21 = 4 + (21 – 1) × 3

U21 = 4 + 20 × 3

U21 = 4 + 60

U21 = 64

.

U105 = 4 + (105 – 1) × 3

U105 = 4 + 104 × 3

U105 = 4 + 312

U105 = 316

.

U200 = 4 + (200 – 1) × 3

U200 = 4 + 199 × 3

U200 = 4 + 597

U200 = 601