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Câu 13:

Tìm nghiệm của phương trình ${{3}^{x-1}}=27.$

Câu 13: Tìm nghiệm của phương trình 3x−1=27.{{3}^{x-1}}=27.3x−1=27.

Thông tin câu hỏi

Câu 13:

Tìm nghiệm của phương trình ${{3}^{x-1}}=27.$