100 Large Print Word Search Puzzles for Seniors: Brain Health Boosting that is fun and exciting

100 Large Print Word Search Puzzles for Seniors: Brain Health Boosting that is fun and exciting

Matematika suatu barisan : 6,9,12
tentukan 20 suku pertama​

suatu barisan : 6,9,12
tentukan 20 suku pertama​ Dik:
a:6
n:20
b:3

Rumus: a+(n-1)b
6+(20-1)3
6+(19)3
6+(57)
63

Maaf kalau salah [answer.2.content]