Math, asked by anitadevi8340248123, 6 months ago

Please solve this as soon as possible​

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Answers

Answered by sare83
1

Step-by-step explanation:

Given that,

 A=    4     9       &     B= 2      1

         -2     6                   3      -2

equation is 3A-2B+2D=0

now, consider

3A=  3x4      9x3   =12     27

        3x-2     6x3    -6      18

2B= 2x2       1x2     =4     2

       3x2       -2x2     6    -4

now,3A-2B= 12-4       27-2       =8      25

                     -6-6       18+4        -12     22

3A-2B+2D=0 (given)

=> 8      25    +2D=0

   -12     22

=>2D=    -8       -25

              +12      -22

=>D=     -8/2     -25/2

             12/2     -22/2

=>D=      -4        -25/2

              6         -11

therefore,

the matrix D= -4      -25/2

                        6       -11

HOPE THIS WOULD BE HELPFUL FOR YOU

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