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solution of l...
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solution of linear equations by determinant 4/(x+5) +3/(y+7)=-1 and 6/(x+5) -6/(y+7)=-5
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Q.
Solve the following system of linear equations in three variables.
y + z - 7x = -16
z + x - 7y = -24
x + y - 7z = -40
Q.
Show that each of the following systems of linear equations is consistent and also find their solutions:
(i) 6x + 4y = 2
9x + 6y = 3
(ii) 2x + 3y = 5
6x + 9y = 15
(iii) 5x + 3y + 7z = 4
3x + 26y + 2z = 9
7x + 2y + 10z = 5
(iv) x − y + z = 3
2x + y − z = 2
−x −2y + 2z = 1
(v) x + y + z = 6
x + 2y + 3z = 14
x + 4y + 7z = 30
(vi) 2x + 2y − 2z = 1
4x + 4y − z = 2
6x + 6y + 2z = 3
Q.
Find the parametric and symmetric equation of the line passing through the point
(
2
,
3
,
4
)
and perpendicular to the plane
5
x
+
6
y
−
7
z
=
20
?
