kak.. tolong bantu ya

Please, let me answer your question :)
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Mapel : Matematika
Tentang : Pola Bilangan dan Barisan
Pertanyaan yg diajukan : 2
Pembahasan :

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Diketahui :
- Beda (b) = U2 - U1 = 5 - 2 = 3
- U1 = 2

Ditanya :
- U50

Un = U1 + (n - 1) x b
Un = 2 + (n - 1) x 3
Un = 2 + 3n - 3
Un = 3n - 1

U50 = 3n - 1
U50 = 3 x 50 - 1
U50 = 150 - 1
U50 = 149

Jawaban : C

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Ditanya :
- Pola ke 10

n (n + 1)
= 10 (10 + 1)
= 10 x 11
= 110

Jawaban : B

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Hopefully this is the best for you.

MAKE BRAINLY GREAT AGAIN!!!

Heil Manstein!