Mathematics

Mathematics

Problem

Two vectors P\mathbf{P} and Q\mathbf{Q} satisfy P+Q=0\mathbf{P}+\mathbf{Q}=\mathbf{0}. If P=5i^−3j^\mathbf{P}=5\hat{i}-3\hat{j}, which of the following is Q\mathbf{Q}? a) 5i^+3j^5\hat{i}+3\hat{j} b) −5i^−3j^-5\hat{i}-3\hat{j} c) −5i^+3j^-5\hat{i}+3\hat{j} d) 3i^−5j^3\hat{i}-5\hat{j}

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