Q. 133.8( 4 Votes )

If <span lang="EN

Answer :

Given two matrices are equal.


We know that if two matrices are equal then the elements of each matrices are also equal.


x = 3 ……(1)


And 3x – y = 2……(2)


And 2x + z = 4 …… (3)


3y – ω = 7 ……(4)


Putting the value of x in equation (2)


3×3 – y = 2


9 – y = 2


y = 9 – 2


y = 7


Now, putting the value of y in equation (4)


3×7 – ω = 7


21 – ω = 7


ω = 21 – 7


ω = 14


Again, Putting the value of x in equation (3)


2×3 + z = 4


6 + z = 4


z = 4 – 6


z = – 2


x = 3, y = 7, z = – 2 and ω = 14


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