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Recent questions and answers in Vector Algebra
Questions
>>
TN XII Math
>>
Vector Algebra
Show that the points
(
1
,
3
,
1
)
,
(
1
,
1
,
−
1
)
,
(
−
1
,
1
,
1
)
,
(
2
,
2
,
−
1
)
are lying on the same plane.(Hint : It is enough to prove any three vectors formed by these four points are coplanar).
tnstate
class12
bookproblem
ch2
sec-1
exercise2-5
p88
q4
answered
Feb 15, 2020
by
sachinbista868
1
answer
The constant forces
→
2
i
−
→
5
j
+
→
6
k
,
−
→
i
+
→
2
j
−
→
k
,
and
→
2
i
+
→
7
j
act on a particle which is displaced from position
→
4
i
−
→
3
j
−
→
2
k
to position
→
6
i
+
→
j
−
→
3
k
. find the work done.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-2
p62
q7
answered
Jun 20, 2013
by
thanvigandhi_1
1
answer
Show that diameter of a sphere subtends a right angle at a point on the surface.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q6
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the centre and radius of the following spheres:
→
r
2
−
→
r
.
(
→
4
i
+
→
2
j
−
→
6
k
)
−
11
=
0
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q5
q5-4
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the centre and radius of the following spheres :
x
2
+
y
2
+
z
2
+
4
x
−
8
x
+
2
z
=
5
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q5
q5-3
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the centre and radius of the following spheres :
|
→
2
r
+
(
→
3
i
−
→
j
+
→
4
k
)
|
=
4
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q5
q5-2
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the centre and radius of the following spheres :
|
→
r
−
(
→
(
2
i
)
−
→
(
j
)
+
→
4
k
)
|
=
5
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q5
q5-1
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
If
A
(
−
1
,
4
,
−
3
)
is one end of a diameter
A
B
of the sphere
x
2
+
y
2
+
z
2
−
3
x
−
2
y
+
2
z
−
15
=
0
than, Find the coordinates of
B
.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q4
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Obtain the vector and cartesian equation of thesphere whose centre is
(
1
,
−
1
,
1
)
and radius is the same as that of the sphere
|
→
r
−
(
→
i
+
→
j
+
→
2
k
)
|
=
5.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q3
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equationof the sphere on the join of the points
A
and
B
having position vectors
→
2
i
+
→
6
j
−
→
7
k
and
−
→
2
i
+
→
4
j
−
→
3
k
respectively as a diameter . Find also the centre and radius of the sphere.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q2
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the vector equation of a sphere with centre having position vector
→
2
i
−
→
j
+
→
3
k
and radius
4
units. Also find the equation in cartesian form.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-11
p124
q1
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the angle between the line
→
r
=
→
i
+
→
j
+
→
3
k
+
λ
(
→
2
i
+
→
j
−
→
k
)
and the plane
→
r
.
(
→
i
+
→
j
)
=
1.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-10
p119
q5
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
Find the angle between the line
x
−
2
3
=
y
+
1
−
1
=
z
−
3
−
2
and the plane
3
x
+
4
y
+
z
+
5
=
0
tnstate
class12
bookproblem
ch2
sec-1
exercise2-10
p119
q4
answered
Jun 18, 2013
by
thanvigandhi_1
1
answer
The planes
→
r
.
(
→
2
i
+
λ
→
j
−
→
3
k
)
=
10
and
→
r
.
(
λ
→
i
+
→
3
j
+
→
k
)
=
5
are perpendiculare find
λ
tnstate
class12
bookproblem
ch2
sec-1
exercise2-10
p118
q3
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Show that the following planes are at right angles.
→
r
(
→
2
i
−
→
j
+
→
k
)
=
15
and
→
r
(
→
i
−
→
j
−
→
3
k
)
=
3
tnstate
class12
bookproblem
ch2
sec-1
exercise2-10
p118
q2
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the angle between following plane:
r
=
(
3
i
+
j
−
k
)
=
7
and
r
=
(
i
+
4
j
−
2
k
)
=
10
tnstate
class12
bookproblem
sec-1
ch2
exercise2-10
p118
q1
q1-3
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the angle between following planes;
2
x
−
3
y
+
4
z
=
1
and
−
x
+
y
=
4
tnstate
class12
bookproblem
ch2
sec-1
exercise2-10
p118
q1
q1-2
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the angle between the followin planes:
2
x
+
y
−
z
=
9
and
x
+
2
y
+
z
=
7
tnstate
class12
bookproblem
ch2
sec-1
exercise2-10
p118
q1
q1-1
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the distane between the parallel planes
x
−
y
+
3
z
+
5
=
0
;
2
x
−
2
y
+
6
z
+
7
=
0
tnstate
class12
bookproblem
ch2
sec-1
exercise2-9
p116
q6
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the distance from the origin to the plane
→
r
=
(
→
2
i
+
→
j
+
→
5
j
)
=
7
tnstate
class12
bookproblem
ch2
sec-1
exercise2-9
p116
q5
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the meeting point of the line
→
r
(
→
2
i
+
→
j
−
→
3
k
)
+
t
(
→
2
i
−
→
j
−
→
k
)
and the plane.
x
−
2
y
+
3
z
+
7
=
0
tnstate
class12
bookproblem
ch2
sec-1
exercise2-9
p116
q4
mar-2007
modelpaper
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the point of intersection of the line
→
r
=
(
→
j
−
→
k
)
+
s
(
→
2
i
−
→
j
+
→
k
)
and
x
z
- plane.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-9
p116
q3
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Can u draw a plane through the given two lines? justify your answer.
→
r
(
→
i
+
→
2
j
−
→
4
k
)
+
t
(
→
2
i
+
→
3
j
+
→
6
k
)
and
r
=
(
→
3
i
+
→
3
j
−
→
5
k
)
+
s
(
−
→
2
i
+
→
3
j
+
→
8
k
)
tnstate
class12
bookproblem
ch2
sec-1
exercise2-9
p116
q2
answered
Jun 17, 2013
by
thanvigandhi_1
1
answer
Find the equations of the plane which contains the two lines
x
+
1
2
=
y
−
2
−
3
=
z
−
3
4
and
x
−
4
3
=
y
−
1
2
=
z
−
8
tnstate
class12
bookproblem
ch2
sec-1
exercise2-9
p116
q1
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Find the cartesian form of following planes:
→
r
=
(
1
+
s
+
t
)
→
i
+
(
2
−
s
+
t
)
→
j
+
(
3
−
2
s
+
2
t
)
→
k
tnstate
class12
bookproblem
ch2
sec-1
p112
exercise2-8
q15
q15-2
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Find the cartesian form of following planes:
→
r
=
(
s
−
2
t
)
→
i
+
(
3
−
t
)
→
j
+
(
2
s
+
t
)
→
k
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p112
q15
q15-1
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Derive the equation of the plane in the intercept form.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p112
q14
mar-2010
modelpaper
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Find the vector cartesian equation of the plane passing through the points with position vectors
→
3
i
+
→
4
j
+
→
2
k
,
→
2
i
−
→
2
j
−
→
2
k
,
and
→
7
i
+
→
k
.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p112
q13
jun-2009
modelpaper
sec-b
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Find the vector cartesian equation of the plane containing the line
x
−
2
2
=
y
−
2
3
=
z
−
1
−
2
and passing through the point
(
−
1
,
1
,
−
1
)
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p112
q12
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equations of the plane through the points
(
1
,
2
,
3
)
and
(
2
,
3
,
1
)
perpendicular to the plane
3
x
−
2
y
+
4
z
−
5
=
0
modelpaper
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q11
mar-2006
oct-2006
oct-2007
jun-2008
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equations of the plane passing through the points
A
(
1
,
−
2
,
3
)
and
B
(
−
1
,
2
,
−
1
)
and is parallel to the line
x
−
2
2
=
y
+
1
3
=
z
−
1
4
.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q10
answered
Jun 16, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equation to the plane through the point
(
−
1
,
3
,
2
)
and perpendicular to the planes
x
+
2
y
+
2
z
=
5
and
3
x
+
y
+
2
z
=
8.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q9
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equations of the plane through the point
(
1
,
3
,
2
)
and parallel to the lines
x
+
1
2
=
y
+
2
−
1
=
z
+
3
3
and parallel to the line
x
−
2
1
=
y
+
1
2
=
z
+
2
2
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q8
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equations of the plane containing the line
x
−
2
2
=
y
−
2
3
=
z
−
1
3
and parallel to the line
x
+
1
3
=
y
−
1
2
=
z
+
1
1
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q7
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equations of the plane through the point
(
2
,
−
1
,
4
)
and parallel to the plane
→
r
.
(
→
4
i
−
→
12
j
−
→
3
k
)
=
7.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q6
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Find the equation of the plane through the point whose
p
.
v
.
is
→
2
i
−
→
j
+
→
k
and perpendicular to the vector
→
4
i
+
→
2
j
−
→
3
k
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q5
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
The foot of the perpendicular drawn from the origin to the plane is
(
8
,
−
4
,
3
)
find the equation of the plane.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q4
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Find the length of the perpendicular frome the origin to the plane
→
r
.
(
→
3
i
+
→
4
j
+
→
12
k
)
=
26
.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q3
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Find the unit normal vectors to the plane
2
x
−
y
+
2
z
=
5
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q2
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equations of a plane which is at a distance of
18
units from the origin and which is normal to the vector
→
2
i
+
→
7
j
+
→
8
k
tnstate
class12
bookproblem
ch2
sec-1
exercise2-8
p111
q1
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
If the point
(
λ
,
0
,
3
)
,
(
1
,
3
,
−
1
)
and
(
−
5
,
−
3
,
7
)
are collinear than find
λ
.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-7
p100
q6
answered
Jun 14, 2013
by
thanvigandhi_1
1
answer
Show that
(
2
,
−
1
,
3
)
,
(
1
,
−
1
,
0
)
and
(
3
,
−
1
,
6
)
are collinear.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-7
p100
q5
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Find the shortest distance between the skew lines
x
−
6
3
=
y
−
7
−
1
=
z
−
4
1
and
x
−
3
=
y
+
9
2
=
z
−
2
4
tnstate
class12
bookproblem
ch2
sec-1
exercise2-7
p100
q4
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Show that the lines
x
−
1
1
=
y
+
1
−
1
=
z
3
and
x
−
2
1
=
y
−
1
2
=
−
z
−
1
1
intersect and find their point of intersection.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-7
p100
q3
jun-2006
modelpaper
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Show that the following two lines are skew lines:
→
r
=
(
→
3
i
+
→
5
j
+
→
7
k
)
+
t
(
→
i
−
→
2
j
+
→
k
)
and
→
r
=
(
→
i
+
→
j
+
→
k
)
+
s
(
→
7
i
−
→
6
j
+
→
7
k
)
tnstate
class12
bookproblem
ch2
sec-1
exercise2-7
p100
q2
jun-2007
modelpaper
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Find the shortest distance between the parallel lines
x
−
1
−
1
=
y
3
=
z
+
3
2
and
x
−
3
−
1
=
y
+
1
3
=
z
−
1
2
tnstate
class12
bookproblem
ch2
sec-1
exercise2-7
p100
q1
q1-2
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Find the shortest distance between the parallel lines
→
r
=
(
→
2
i
−
→
j
−
→
k
)
+
t
(
→
i
−
→
2
j
+
→
3
k
)
and
→
r
=
(
→
i
+
→
2
j
+
→
k
)
+
s
(
→
i
−
→
2
j
+
→
3
k
)
tnstate
class12
bookproblem
ch2
sec-1
exercise2-7
p100
q1
q1-1
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Find the angle between the lines
→
r
=
→
5
i
−
→
7
j
+
μ
(
−
→
i
+
→
4
j
+
→
2
k
)
→
r
=
−
→
2
i
+
→
k
+
λ
(
→
3
i
+
→
4
k
)
tnstate
class12
bookproblem
ch2
sec-1
exercise2-6
p94
q9
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Find the angle between the following lines.
x
−
1
2
=
y
+
1
3
=
z
−
4
6
and
x
+
1
=
y
+
2
2
=
z
−
4
2
tnstate
class12
bookproblem
ch2
sec-1
exercise2-6
p94
q8
mar-2009
modelpaper
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
Find the vector and cartesian equation of the line joining the points
(
1
,
−
2
,
1
)
and
(
0
,
−
2
,
3
)
.
tnstate
class12
bookproblem
ch2
sec-1
exercise2-6
p94
q7
answered
Jun 12, 2013
by
thanvigandhi_1
1
answer
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