Math Chapter Wise Matrices And Determinants English MCQ UPPSC Ashram Paddhati 2021 Q.The inverse of the matrix 1 2 2 –1 is A1 2 5 5 2 –1 5 5 B1 2 5 5 2 1 5 5 C1 –2 5 5 2 –1 5 5 D1 2 5 5 –2 –1 5 5 Show answer Correct answer: 1 2 5 5 2 –1 5 5