Math, asked by tittu477, 11 hours ago

x X y X z = ab + 100

find the value of X ​

Answers

Answered by amaanshohebmd
0

Answer:

(i) [  

4

x

 

3

5

]=[  

y

1

 

z

5

]

As the given matrices are equal, their corresponding elements are also equal.

Comparing the corresponding elements, we get: x=1,y=4, and z=3

(ii) [  

x+y

5+z

 

2

xy

]=[  

6

5

 

2

8

]

As the given matrices are equal, their corresponding elements are also equal. Comparing the corresponding elements, we get:

x+y=6,xy=8,5+z=5

Now, 5+z=5⇒z=0

We know that:

(x−y)  

2

=(x+y)  

2

−4xy

⇒(x−y)  

2

=36−32=4

⇒x−y=±2

Now, when x−y=2 and x+y=6, we get x=4 and y=2

When x−y=−2 and x+y=6, we get x=2 and y=4

∴x=4,y=2 and z=0orx=2,y=4 and  z=0

(iii)    

 

x+y+z

x+z

y+z

 

=  

 

9

5

7

 

 

As the two matrices are equal, their corresponding elements are also equal. Comparing the corresponding elements, we get:

x+y+z=9        ....(1)

x+z=5            ....(2)

y+z=7            ....(3)

From (1) and (2), we have:

y+5=9

⇒y=4

Then, from (3), we have: 4+z=7

⇒z=3

∴x+z=5

⇒x=2

∴x=2,y=4 and z=3

Step-by-step explanation:

Answered by akkeku1618
0

Answer:

x=10 this is your answer

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