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Starting from a determinant of value 7, a student first… | StemPy Lab

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Starting from a determinant of value 7, a student first multiplies one row by 3 and then interchanges two rows. What is the final value?

MathematicsMediumHigh School (11–12)Algebra › Matrices and Determinants A-Level AEEE (Amrita)AMUEEE AP EAPCET BCECE COMEDK UGET CUET UG GUJCET IB JCECE JKCET KCET KEAM KIITEE LPUNEST MET (Manipal)MHT-CET OJEE SRMJEEE TS EAPCET UPESEAT VITEEE

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Starting from a determinant of value $7$ , a student first multiplies one row by $3$ and then interchanges two rows. What is the final value?

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