Lima suku pertama daribarisanbilangan ddbgab rumus un=n²+1

un = n² + 1
u1,2,3,4,5 = (1, 2, 3, 4, 5,)² + 1
u1,2,3,4,5 = (1, 4, 9, 16, 25) + 1
u1,2,3,4,5 = {2, 5, 10, 17, 26}

semoga membantu :)