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CBSE Class 12-science Answered

find a^-1 using elementary row operation of a= $open square brackets table row cell negative 1 end cell 2 1 row 1 2 3 row 3 1 3 end table close square brackets$

Asked by spd231624 | 04 May, 2019, 09:54: PM

Expert Answer

begin mathsize 16px style To space find space the space inverse space of space matrix space given space follow space the space steps straight R subscript 1 rightwards arrow negative straight R subscript 1 straight R subscript 2 rightwards arrow straight R subscript 2 space minus straight R subscript 1 space and space straight R subscript 3 rightwards arrow straight R minus 3 straight R subscript 1 straight R subscript 2 rightwards arrow straight R subscript 2 over 4 straight R subscript 1 rightwards arrow straight R subscript 1 plus 2 straight R subscript 2 space and space straight R subscript 3 rightwards arrow straight R subscript 3 minus 7 straight R subscript 2 straight R subscript 3 rightwards arrow negative straight R subscript 3 straight R subscript 1 rightwards arrow straight R subscript 1 minus straight R subscript 3 space and space straight R subscript 2 rightwards arrow straight R subscript 2 minus straight R subscript 3 You space will space get space inverse space matrix space straight a open square brackets table row cell 3 over 4 end cell cell fraction numerator negative 5 over denominator 4 end fraction end cell 1 row cell 3 over 2 end cell cell fraction numerator negative 3 over denominator 2 end fraction end cell 1 row cell fraction numerator negative 5 over denominator 4 end fraction end cell cell 7 over 4 end cell cell negative 1 end cell end table close square brackets end style

Answered by Sneha shidid | 05 May, 2019, 02:42: PM

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find a^-1 using elementary row operation of a=

open square brackets table row cell negative 1 end cell 2 1 row 1 2 3 row 3 1 3 end table close square brackets

Asked by spd231624 | 04 May, 2019, 09:54: PM

ANSWERED BY EXPERT

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