Deret Aritmetika: Materi dan 8 Soal Kelas 11

0 Slides • 8 Questions

1

Multiple Choice

Rumus deret aritmetika adalah

1

$S_n=\frac{1}{2}n\left(2a+\left(n-1\right)b\right)$

2

$S_n=\frac{1}{2}n\left(a+U_n\right)$

3

$S_n=\frac{1}{2}a\left(2n\left(n-1\right)b\right)$

4

$S_n=\frac{1}{2}n\left(2n\left(1-a\right)b\right)$

5

$S_n=\frac{1}{2}b\left(2a\left(n-1\right)b\right)$

2

Multiple Choice

tentukan jumlah 20 suku pertama deret 3+7+11+.....

1

$820$

2

850

3

800

4

810

5

280

3

Multiple Choice

suatu barisan aritmetika dengan suku ke 4 adalah 12 dan suku ke 12 adalah -28. tentukan jumlah 15 suku pertama!

1

-300

2

-399

3

-310

4

-301

5

-350

4

Multiple Choice

suatu deret aritmetika dengan S12=150 dan S11=100. tentukan U12

1

50

2

40

3

-50

4

60

5

-40

5

Multiple Choice

Suatu barisan aritmetika dirumuskan Un = 6n – 2 tentukan rumus Sn !

1

$S_n=3n^2+n$

2

$S_n=6n^2+n$

3

$S_n=2n^2+n$

4

$S_n=13n^2+n$

5

$S_n=4n^2+n$

6

Multiple Choice

Tentukan jumlah semua bilangan ganjil antara 10 dan 200 !

1

9975

2

9974

3

9957

4

9978

5

9999

7

Multiple Choice

Hasil dari 5 + 7 + 9 + 11 + ... + 41 adalah ...

1

437

2

997

3

9957

4

9978

5

9999

8

Multiple Choice

Suatu barisan aritmatika diketahui suku ke 6 adalah –4 dan suku ke 9 adalah –19,

maka suku ke 11 adalah...

1

-29

2

-34

3

-19

4

-24

5

-14

Rumus deret aritmetika adalah

1

$S_n=\frac{1}{2}n\left(2a+\left(n-1\right)b\right)$

2

$S_n=\frac{1}{2}n\left(a+U_n\right)$

3

$S_n=\frac{1}{2}a\left(2n\left(n-1\right)b\right)$

4

$S_n=\frac{1}{2}n\left(2n\left(1-a\right)b\right)$

5

$S_n=\frac{1}{2}b\left(2a\left(n-1\right)b\right)$

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