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Barisan dan deret

Authored by Nina Hasanah undefined

Mathematics

10th Grade

Used 1+ times

Barisan dan deret
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6 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

Tiga suku berikutnya dari bilangan 1, 8, 27 adalah ....

64, 125, 216

46, 152, 162

64, 125, 162

64, 152, 261

216, 125, 64

Answer explanation

4^3 =64, 5^3 = 125, 6^3 = 216

2.

MULTIPLE CHOICE QUESTION

30 sec • 10 pts

3 suku berikutnya dari Un = 3n -2 adalah ....

1, 4, 7

1, 2, 3

2, 4, 6

1, 5, 8

2, 3 , 4

Answer explanation

U1 = 3.1 - 2 = 3 - 2 = 1

U2 = 3. 2 - 2 = 6 -2 = 4

U3 = 3.3 -2 = 7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan suku pertama, beda dari barisan 3, 8, 13, 18 ... adalah ...

a = 3, b = 5

a = 8, b = 5

a = 3 , b = 3

a= 5, b = 5

a= 13, b = 8

Answer explanation

Suku pertama = a = 3

Beda = b =5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rumus suku ke-n dari barisan 4, 7, 10, 13 adalah ...

Un =4n+1

Un = 3n +1

Un = 3n +2

Un = 4n +2

Un= 3n-2

Answer explanation

Un = a + (n-1).b

Un = 4 + (n-1).3

Un = 4 + 3n -3

Un = 3n +1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jumlah 10 suku pertama dari deret aritmatika 4+7+10 ... adalah ...

150

160

170

175

18

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suku ke -8 dari barisan geometri 5, 10, 20 adalah ...

620

630

640

645

655

Answer explanation

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