 
        
        Algebra
.docxAlgebra and geometry
Вопрос № 1
1 Let 
 ,
,
 
 be vectors in
 be vectors in 
 .
Find the angle between these vectors.
.
Find the angle between these vectors. 
2 0;
Вопрос № 2
Let 
 ,
,
 
 be vectors in
 be vectors in 
 .
Find the angle between these vectors .
.
Find the angle between these vectors .
2 
 ;
;
Вопрос № 3
Let
 ,
,
 
 be vector in
 be vector in 
 .
Find the angle between these vectors.
.
Find the angle between these vectors.  
2
 ;
;
Вопрос № 4
Let
 ,
,
 
 be vectors in
 be vectors in 
 .
Find the angle between these vectors
.
Find the angle between these vectors 
0;
Вопрос № 5
Let 
 ,
,
 
 be vectors in
 be vectors in 
 .
Find the angle between these vectors.
.
Find the angle between these vectors. 
0;
Вопрос № 6
 Let 
 ,
,
 
 be vectors in
 be vectors in 
 .
Find the angle between these vectors.
.
Find the angle between these vectors.   
0;
Вопрос № 7
 Let 
 ,
,
 
 be vectors in
 be vectors in 
 .
Find the angle between these vectors..
.
Find the angle between these vectors.. 
 ;
;
Вопрос № 8
 Let 
 ,
,
 
 be vectors in
 be vectors in 
 .
Find the angle between these vectors.
.
Find the angle between these vectors.
 ;
;
.
Вопрос № 9
 9) Let 
 and
and 
 be vectors in
be vectors in 
 such that
such that 
 .
Find
.
Find 
 if:
if: 
 .
.
2;
Вопрос № 10
 Let 
 and
and 
 be vectors in
be vectors in 
 such that
such that 
 .
Find
.
Find 
 if:
if: 
 .
.
-1;
Вопрос № 11
$$1 Let 
 and
and 
 be vectors in
be vectors in 
 such that
such that 
 .
Find
.
Find 
 if:
if: 
 .
.
$$2 12;
Вопрос № 12
$$1 Let 
 and
and 
 be vectors in
be vectors in 
 such that
such that 
 .
Find
.
Find 
 if:
if: 
 .
.
$$2
 ;
;
Вопрос № 13
$$1 Let 
 and
and 
 be vectors in
be vectors in such that
such that 
 .
Find
.
Find 
 if:
if: 
 .
.
$$2 
 ;
;
Вопрос № 14
$$1 Let 
 and
and 
 be vectors in
be vectors in 
 such that
such that 
 .
Find the angle between
.
Find the angle between 
 and
and  
 if:
if: 
 .
.
$$2
 ;
;
Вопрос № 15
$$1 Let 
 and
and 
 be vectors in
be vectors in 
 such that
such that 
 .
Find the angle between
.
Find the angle between 
 and
and  
 if:
if: 
 .
.
$$2
 ;
;
Вопрос № 16
$$1  Determine  
 so that vectors
so that vectors  
 and
and  
 are orthogonal, where
are orthogonal, where 
 .
.
$$2
 ;
;
Вопрос № 17
$$1 Determine  
 so that vectors
so that vectors  
 and
and  
 are orthogonal, where
are orthogonal, where 
 .
.
$$2 -6
Вопрос № 18
$$1 Determine  
 so that vectors
so that vectors  
 and
and  
 are orthogonal, where
are orthogonal, where 
 .
.
$$2

Вопрос № 19
$$1 Determine  
 so that vectors
so that vectors  
 and
and  
 are orthogonal, where
are orthogonal, where 
 .
.
$$2

Вопрос № 20
$$1 Determine  
 so that vectors
so that vectors  
 and
and  
 are orthogonal, where
are orthogonal, where 
 .
.
$$2

Вопрос № 21
$$1 Find 
 and
and if
if  
 .
.
$$2

Вопрос № 22
$$1 Find 
 and
and if
if  
 .
.
$$2

Вопрос № 23
$$1 Find 
 and
and if
if  
 .
.
$$2

Вопрос № 24
$$1 Find 
 and
and if
if  
 .
.
$$2

Вопрос № 25
$$1 Find 
 and
and if
if  
 .
.
$$2

Вопрос № 26
$$1 Solve the system 
 .
.
$$2

Вопрос № 27
$$1 Solve the system 
 .
.
$$2

Вопрос № 28
$$1 Solve the system 
 .
.
$$2 No solution;
Вопрос № 29
$$1 Solve the system 
 .
.
$$2

Вопрос № 30
$$1 Solve the system 
 .
.
$$2 No solution;
Вопрос № 31
$$1 Solve the system 
 .
.
$$2

Вопрос № 32
$$1 Determine 
 so that the system
so that the system 
 has the unique solution.
has the unique solution.
$$2

Вопрос № 33
$$1 Determine 
 so that the system
so that the system 
 has the unique solution.
has the unique solution.
$$2

Вопрос № 34
$$1 Determine 
 so that the system
so that the system 
 has the unique solution.
has the unique solution.
$$2

Вопрос № 35
$$1 Determine 
 so that the system
so that the system 
 has the unique solution.
has the unique solution.
$$2

Вопрос № 36
$$1 Determine 
 so that the system
so that the system 
 has the unique solution.
has the unique solution.
$$2

Вопрос № 37
$$1 Determine 
 so that the system
so that the system 
 has more the one solution.
has more the one solution.
$$2

Вопрос № 38
$$1 Determine 
 so that the system
so that the system 
 has more then one solution.
has more then one solution.
$$2

Вопрос № 39
$$1 Determine 
 so that the system
so that the system 
 has more then one solution.
has more then one solution.
$$2

Вопрос № 40
$$1 $$1 Determine 
 so that the system
so that the system 
 has more then one solution.
has more then one solution.
$$2

Вопрос № 41
$$1 Determine 
 so that the system
so that the system 
 has more then one solution.
has more then one solution.
$$2

Вопрос № 42
$$1  Let    
 .
Find
.
Find 
 .
.
$$2

Вопрос № 43
$$1 Let 
 .
Find
.
Find 
 .
.
$$2

Вопрос № 44
$$1 Let 
 .
Find
.
Find 
 .
.
$$2
 does not exist;
 does not exist;
Вопрос № 45
$$1  Let  
 ,
,
 .
Find
.
Find  

$$2

Вопрос № 46
$$1 Let  
 ,
,
 .
Find
.
Find  

$$2

Вопрос № 47
$$1  Let  
 ,
,
 .
Find
.
Find  

$$2

Вопрос № 48
$$1 Given  
 .
Find a vector
.
Find a vector 
 such that
such that 
 .
.
$$2
 ;
;
Вопрос № 49
$$1 Given  
 .
Find a vector
.
Find a vector 
 such that
such that 
 .
.
$$2
 ;
;
.
Вопрос № 50
$$1 Given  
 .
Find a vector
.
Find a vector 
 such that
such that 
 .
.
$$2
 ;
;
Вопрос № 51
$$1 Write the vector 
 as a linear combination of the vectors
as a linear combination of the vectors 
 .
.
$$2

Вопрос № 52
$$1 Write the vector 
 as a linear combination of the vectors
as a linear combination of the vectors 
 .
.
$$2

Вопрос № 53
$$1 Write the vector 
 as a linear combination of the vectors
as a linear combination of the vectors 
 .
.
$$2

Вопрос № 54
$$1 Write the vector 
 as a linear combination of the vectors
as a linear combination of the vectors 
 .
.
$$2

Вопрос № 55
$$1 Write  
 as a linear combination of matrices
as a linear combination of matrices 
 .
.
$$2
 ;
;
Вопрос № 56
$$1 Write  
 as a linear combination of matrices
as a linear combination of matrices 

$$2
 ;
;
Вопрос № 57
$$1 Write 
 as a linear combination of matrices
 as a linear combination of matrices 

$$2
 ;
;
Вопрос № 58
Write 
 as a linear combination of matrices
 as a linear combination of matrices 

$$2
 ;
;
Вопрос № 59
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 60
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 61
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 62
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 63
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 64
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 65
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 66
$$1 Find the rank of matrix 
 .
.
$$2
 ;
;
Вопрос № 67
$$1 Find a dimension of the
solution space 
 of the homogeneous system
of the homogeneous system
 .
.
$$2

Вопрос № 68
$$1 Find a dimension of the
solution space 
 of the homogeneous system
of the homogeneous system
 .
.
$$2

Вопрос № 69
$$1 $$1 Find a dimension of
the solution space 
 of the homogeneous system
of the homogeneous system
 .
.
$$2

 $$1 Find a dimension of the
solution space 
 of the homogeneous system
of the homogeneous system
 .
.
$$2

Вопрос № 70
$$1 Find a dimension of the
solution space 
 of the homogeneous system
of the homogeneous system
 .
.
$$2

.
Вопрос № 71
$$1 Find a  dimension of the
subspace 
 of
of
 generated by vectors
generated by vectors  
 .
.
$$2 
 ;
;
Вопрос № 72
$$1 Find a  dimension of the
subspace 
 of
of
 generated by vectors
generated by vectors  
 .
.
$$2 
 ;
;
Вопрос № 73
$$1 Find a  dimension of the
subspace 
 of
of
 generated by vectors
generated by vectors  
 .
.
$$2 
 ;
;
Вопрос № 74
$$1 Find a  dimension of the
subspace 
 of
of
 generated by vectors
generated by vectors  
 
 .
.
$$2 
 ;
;
Вопрос № 75
$$1 Find a  dimension of the
subspace 
 of
of
 generated by vectors
generated by vectors  
 ,
,
 .
.
$$2 
 ;
;
Вопрос № 76
$$1 Let 
 be linear operators on
be linear operators on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 
 ;
;
Вопрос № 77
$$1 Let 
 be linear operators on
be linear operators on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 
 ;
;
Вопрос № 78
$$1 Let 
 be linear operators on
be linear operators on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 
 ;
;
Вопрос № 79
$$1 Let 
 be linear operators on
be linear operators on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 
 ;
;
Вопрос № 80
$$1 Let 
 be linear operators on
be linear operators on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 
 ;
;
Вопрос № 81
$$1 Let 
 be linear operators on
be linear operators on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 
 ;
;
Вопрос № 82
$$1 Let  
 be linear operators on
be linear operators on  
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 
 ;
;
Вопрос № 83
$$1 Which of the following
mappings  
 are
linear?
are
linear?
$$2 
 ;
;
Вопрос № 84
$$1 Which of the following
mappings  
 are
linear?
are
linear?
$$2 
 ;
;
Вопрос № 85
$$1 Which of the following
mappings  
 are
linear?
are
linear?
$$2 
 ;
;
Вопрос № 86
$$1 Find the matrix of the
linear operator on 
 defined by
defined by 
 with respect to the usual basis.
with respect to the usual basis.
$$2 
 ;
;
Вопрос № 87
$$1 Find the matrix of the
linear operator on 
 defined by
defined by 
 with respect to the usual basis.
with respect to the usual basis.
$$2 
 ;
;
Вопрос № 88
$$1 Find the matrix of the
linear operator on 
 defined by
defined by 
 with respect to the usual basis.
with respect to the usual basis.
$$2 
 ;
;
Вопрос № 89
$$1 Find the matrix of the
linear operator on 
 defined by
defined by 
 with respect to the usual basis.
with respect to the usual basis.
$$2 
 ;
;
Вопрос № 90
$$1 Find the matrix of the
linear operator on 
 defined by
defined by 
 with respect to the usual basis.
with respect to the usual basis.
$$2 
 ;
;
Вопрос № 91
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 

Вопрос № 92
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 

Вопрос № 93
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 

Вопрос № 94
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 

Вопрос № 95
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 

Вопрос № 96
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2 

Вопрос № 97
$$1 For the matrix  
 ,
find the cofactor of the entry
,
find the cofactor of the entry  
 .
.
$$2

Вопрос № 98
$$1 For the matrix  
 ,
find the cofactor of the entry
,
find the cofactor of the entry  
 .
.
$$2

Вопрос № 99
$$1 For the matrix  
 ,
find the cofactor of the entry
,
find the cofactor of the entry  
 .
.
$$2

Вопрос № 100
$$1 Evaluate the determinant
of the matrix   
 .
.
$$2

Вопрос № 101
$$1 Evaluate the determinant
of the matrix   
 .
.
$$2

Вопрос № 102
$$1 Evaluate the determinant
of the matrix   
 .
.
$$2

Вопрос № 103
$$1 Evaluate the determinant
of the matrix   
 .
.
$$2

Вопрос № 104
$$1 Evaluate the determinant
of the matrix   
 .
.
$$2

Вопрос № 105
$$1 Let 
 .
Find
.
Find 
 .
.
$$2

Вопрос № 106
$$1 Let 
 .
Find
.
Find 
 .
.
$$2

Вопрос № 107
$$1 Let 
 .
Find
.
Find 
 .
.
$$2

Вопрос № 108
$$1 Let 
 .
Find
.
Find 
 .
.
$$2

Вопрос № 109
$$1 Let 
 .
Find
.
Find 
 .
.
$$2 Does not exist;
Вопрос № 110
$$1 Let 
 .
Find
.
Find 
 .
.
$$2 Does not exist;
Вопрос № 111
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .Find
.Find
 .
.
$$2

Вопрос № 112
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .Find
.Find
 .
.
$$2

Вопрос № 113
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2

Вопрос № 114
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .Find
.Find
 .
.
$$2

Вопрос № 115
$$1 Let 
 be the linear operator on
be the linear operator on 
 defined by
defined by 
 .
Find
.
Find 
 .
.
$$2

Вопрос № 116
$$1 Find all eigenvalues of
the matrix  
 .
.
$$2

Вопрос № 117
$$1 Find all eigenvalues of
the matrix  
 .
.
$$2

Вопрос № 118
$$1 Find all eigenvalues of
the matrix  
 .
.
$$2

Вопрос № 119
$$1 Find all eigenvalues of
the matrix  
 .
.
$$2 Does not exist;
Вопрос № 120
$$1 Find all eigenvalues of
the matrix  
 .
.
$$2

Вопрос № 121
$$1 Find the slope and the
segment cut out on the y-axis
of the straight line 
 .
.
$$2

Вопрос № 122
$$1
Find the slope and the segment cut out on the y-axis
of the straight line 
 .
.
$$2

Вопрос № 123
$$1
Find the slope and the segment cut out on the y-axis
of the straight line 
 .
.
$$2
 .
.
Вопрос № 124
$$1 Find the equation of the
straight line that passes through the origin and  is parallel to the
straight line 
 ;
;
$$2

Вопрос № 125
$$1 Find the equation of the
straight line that passes through the origin and  is parallel to the
straight line 
 ;
;
$$2 
 ;
;
Вопрос № 126
$$1
Find the equation of the straight line that passes through the point
 and  is parallel to the straight line
and  is parallel to the straight line 
 .
.
$$2
 ;
;
Вопрос № 127
$$1
Find the equation of the straight line that passes through the point
 and  is parallel to the straight line
and  is parallel to the straight line 
 .
.
$$2
 ;
;
Вопрос № 128
. $$1 Find the equation of
the straight line that passes through the point 
 and is perpendicular to the straight line
and is perpendicular to the straight line 
 .
.
$$2
 ;
;
Вопрос № 129
$$1 Find the equation of the
straight line that passes through the point 
 and is perpendicular to the straight line
and is perpendicular to the straight line 
 .
.
$$2
 ;
;
Вопрос № 130
$$1 Find the equation of the
straight line that passes through the point 
 and is perpendicular to the straight line
and is perpendicular to the straight line 
 .
.
$$2
 ;
;
Вопрос № 131
