Math, asked by singhashish7692, 1 year ago

Question number thirty four

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Answers

Answered by DarkFrost
2

Acc to Me

just square it by multiplication

you find

1*1+2*3    2*1+2*2

3*1+2*3    3*2+2*2

7      6

9      10    -----this is x^2

3X

3*1     3*2

3*3     3*2

3   6

9    6

then find X^2-3X

7   6         -       3    6

9    10               9    6

4   0

0   4

take 4 common

4     1    0

       0   1

4I is correct answer

I hope it help


singhashish7692: Thanks
Answered by mkrishnan
0

Answer:

4I

Step-by-step explanation:

YOU NEED NOT CALCULATE    

THE ANSWER IS   - DET (X) I  = 4 I

THE DETERMINANT VALUE IS 2-6=  - 4

NOTE THAT SUM OF DIAGONAL ELEMENTS  =3

SO 3X IS SUBTRACTED


DarkFrost: Bro this is matrix question there is use of matrix not use of determinent
mkrishnan: yes i know bro but option are given so i use determinant any way thank u
mkrishnan: good job
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