Kunci Latihan Soal Barisan dan Deret Aritmatika
Kunci jawaban : 1. -71 2. 39 3. 299 4. 15 5. 4 6. 53 7. Suku pertama -30, beda 7 8. Un =-7n +12 9. 28 10. 2.600.00 11. 50 12. 620 13. 1900 14. 18.000
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