tentukan suku ke 7 dan 10 (deret geometri) 1. 8,16,32,.. 2. 9,18,36,.. 3. 4,16,64,.. 4. 81,27,9,..
Matematika
adityasandi31
Pertanyaan
tentukan suku ke 7 dan 10 (deret geometri)
1. 8,16,32,..
2. 9,18,36,..
3. 4,16,64,..
4. 81,27,9,..
1. 8,16,32,..
2. 9,18,36,..
3. 4,16,64,..
4. 81,27,9,..
1 Jawaban
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1. Jawaban shefshef
1. r = 2
U7 = ar⁶
= 8. 2⁶
= 8. 64
= 512
U10 = ar⁹
= 8. 2⁹
= 8. 512
= 4096
2. r = 2
U7 = ar⁶
= 9. 2⁶
= 9. 64
= 576
U10 = ar⁹
= 9. 2⁹
= 9. 512
= 4608
3. r = 4
U7 = ar⁶
= 4. 4⁶
= 16384
U10 = ar⁹
= 4. 4⁹
= 1048576
4.r = 1/3
U7 = ar⁶
= 81. 1/3⁶
= 1/9
U10 = ar⁹
= 81. 1/3⁹
= 1/243