Question

Tolong dijawab no 3 ya..

Answer 1

3.
u3 = 14 --> a + 2b = 14

u7 - u 5 = 10  --> (7-5)b = 10
2b = 10
b = 5

a + 2b = 14
a + 10 = 14
a = 4

U10 = a + 9b = 4 +9(5)
U10 = 4 +45
U10 = 49