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Vijay posted an Question
July 04, 2022 • 21:54 pm 30 points
  • CSIR NET
  • Mathematical Sciences

20. if matrix a is mxn and b is n x p, then number of multiplication operauons and needed to calculate the matrix ab, respectivelv are

20. If matrix A is mxn and B is n x p, then number of multiplication operauons and needed to calculate the matrix AB, respectivelv are

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    Navdeep goyal 1 Best Answer

    no of multipiction operation =(mxn)(nxp)=mnp bcz first matrix has m rows n column if we multipal first row with first column then n multipal operation.first row multiply p column so np operation there for total =mnp no of addition operation =m(n-1)p bcz first matrix has m rows n column if we multipal first row with first column then n-1 addition operation.first row multiply p column so (n-1)p operation therefor total =m(n-1)p

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