Jawaban:
2. b= 7
3. U15=44
Penjelasan dengan langkah-langkah:
2.
b= U2-U1
b= 16-9
b= 7
3.
2, 5, 8, 11, ...
a= 2, b= 5-2= 3
Un= a+(n-1)b
U15= 2+(15-1)3
= 2+(14)3
= 2+42
= 44
2. sebuah barisan aritmetika
9, 16, 23, 30, ......
U1, U2, U3, U4, ....
beda (b) = U2 - U1
beda (b) = 16 - 9
beda (b) = 7
3. Diketahui :
Ditanya :
Dijawab :
Rumus : Un = a + (n - 1) b
U15 = 2 + (15 - 1) 3
U15 = 2 + (14 x 3)
U15 = 2 + 42
U15 = 44
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Jawaban:
2. b= 7
3. U15=44
Penjelasan dengan langkah-langkah:
2.
b= U2-U1
b= 16-9
b= 7
3.
2, 5, 8, 11, ...
a= 2, b= 5-2= 3
Un= a+(n-1)b
U15= 2+(15-1)3
= 2+(14)3
= 2+42
= 44
Jawaban:
2. sebuah barisan aritmetika
9, 16, 23, 30, ......
U1, U2, U3, U4, ....
beda (b) = U2 - U1
beda (b) = 16 - 9
beda (b) = 7
3. Diketahui :
Ditanya :
Dijawab :
Rumus : Un = a + (n - 1) b
U15 = 2 + (15 - 1) 3
U15 = 2 + (14 x 3)
U15 = 2 + 42
U15 = 44