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Câu 1:

Tập nghiệm của phương trình ${{2}^{x}}=-1$

Câu 1: Tập nghiệm của phương trình 2x=−1{{2}^{x}}=-12x=−1 là

Thông tin câu hỏi

Câu 1:

Tập nghiệm của phương trình ${{2}^{x}}=-1$ là