nomor 2 gimana caranya ??
Matematika
dopan1
Pertanyaan
nomor 2 gimana caranya ??
1 Jawaban
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1. Jawaban Anonyme
(2.8-9)(8-7) + (2.9-9)(9-7) + (2.10-9)(10-7) + (2.11-9)(11-7) = 7 + 18 + 33 + 52 = 110