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Matematika
Rikayanis
Pertanyaan
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1 Jawaban
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1. Jawaban whongaliem
³㏒ 7 - ³㏒ 63 - 3.³㏒ 3 + 1/2.³㏒ 81 = ³㏒ (7/63) - 3 .1 + ³㏒ (81)^(1/2)
= ³㏒ (1/9) - 4 + ³㏒ √81
= ³㏒ 3^(-2) - 4 + ³㏒ 9
= - 2 .³㏒ 3 - 4 + 2
= - 2 - 4 + 2
= - 4 ...... jawaban : a