Mathematicon
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JEE Main Mock Test 8
Q 1 / 25
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Section A - MCQ
Medium
JEE Main 2019
Question 1
+4 marks
If the system of linear equations
x
+
2
a
y
+
a
z
=
0
;
x + 2ay + az = 0;
x
+
2
a
y
+
a
z
=
0
;
x
+
3
b
y
+
b
z
=
0
;
x
+
4
c
y
+
c
z
=
0
;
x + 3by + bz = 0;\,\,x + 4cy + cz = 0;
x
+
3
b
y
+
b
z
=
0
;
x
+
4
cy
+
cz
=
0
;
has a non - zero solution, then
a
,
b
,
c
a, b, c
a
,
b
,
c
.
A
satisfy
a
+
2
b
+
3
c
=
0
a+2b+3c=0
a
+
2
b
+
3
c
=
0
B
are in A.P
C
are in G.P
D
are in H.P.
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Section A - MCQ
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Section B - Numerical
1
2
3
4
5