If x=5 and y= -3 for certain simultaneous equations and the determinant D= -5 then find the value of Dx and Dy.
Answers
Answered by
9
Answer:
Here,
given:
x=5 & y = -3 D= -5
Step-by-step explanation:
By Cramer's Rule,
x = Dx/D
we have,
5 = Dx/ -5
Dx = 5×5
Dx= 25
y = Dy/D
we have,
-3 = Dy/ -5
Dy = -3×5
Dy = -15
therefore, the value of Dx and Dy is 25 and -15 respectively.
Answered by
0
Answer:
The value of Dx is -25 and that of Dy is 15.
Step-by-step explanation:
Given:
x = 5, y = -3, D = -5
To find:
Dx =?
Dy =?
Solution:
We know that according to Cramer's rule,
x = Dx/D, y = Dy/D, and z = Dz/D
Substituting the given values, we get
x = Dx/D
5 = Dx/-5
Dx = 5×-5
Dx = -25
y = Dy/D
-3 = Dy/-5
Dy = -3×-5
Dy = 15
Therefore, the values of Dx and Dy using Cramer's rule is -25 and 15 respectively.
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