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Ayansa Dabesa soboka
Questions and answers by visitors named
Ayansa Dabesa soboka
Questions (157)
For the unit vectors i, j and k, find i x j , j x k and k x i. What is j x i ?
If A and B are parallel, what is A x B? If A and B
2 answers
82 views
Given two non-zero vectors A and B, how do you find the angle between them? Take, for example, A = (2, -1, 2), B = (1, -1, 0)
2 answers
63 views
prove that two non zero vectors A and B are perpendicular if and only if, |A|<|A+tB| for every number t.
2 answers
83 views
Find a non-zero vector orthogonal to (1, 2, -1)
2 answers
82 views
Find a unit vector in the direction of (3, -1, 2, 4)
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47 views
Find a non-zero vector orthogonal to (1, 2, -1)
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69 views
a) Find all vectors that are orthogonal to E1 = (1, 0, 0)
b) Find all vectors that are orthogonal to both E1 and E3 = (0, 0, 1)
2 answers
90 views
Which of he following vectors are parallel or perpendicular to (1, 1, -1)?
A)(2, 2, -2) d) (1, 0, 1) B)(2, -2, 0) e) C)(-2, 2, 2)
2 answers
90 views
If A + B + C = 0. Show that A x B = B x C = C x A
2 answers
37 views
Find a formula for the area of a parallelogram whose vertices, in order, are
P, Q, R & S.
2 answers
59 views
Show that
2 answers
20 views
Find parametric equations of lines through
a. (-5, -6, 8) and (1, 3, 7) b. (10, 3, 1) and (6, -2, -3)
2 answers
57 views
Find equation of a plane through points
(0, 1, 0), (0, -1, -1) and (1, 2, 1)
2 answers
62 views
Find a point of intersection of the lines {p:p = (1, -5, 2) + t(-1, 1, 0)} and {p:p = (3, -3, 1) + t(4, 0, -1)}
Prove that the
2 answers
67 views
Find a point of intersection of the lines {p:p = (1, -5, 2) + t(-1, 1, 0)} and {p:p = (3, -3, 1) + t(4, 0, -1)}
2 answers
71 views
Prove that the line {p:p = (1, 3, -1) + t(0, 3, 5)} lies entirely in the plane
{(x, y, z): 2x – 5y + 3z = -16}
2 answers
112 views
Find the intersection point of the lines {p:p = (-2, 4, 6) + t(1, 2, 3)} and {p:p = (-2, 1, 6) + t(3, 2, 1)}. Find equation of
2 answers
70 views
Find all points of intersection of the line {p:p = t(1, -3, 6)} and the plane {p:x + 3y + z = 2}
2 answers
51 views
Prove that if B.N = 0 and A is on the plane {p:(p – po).N = 0} then the entire line {p:p = A + tB} lies in the plane.
2 answers
67 views
Find a line through the point po = (-5, 2, 1) and normal to the plane
{(x, y, z): x = y}
2 answers
58 views
Find a line through (xo, yo, zo) and normal to the plane {(x, y, z): ax + by + cz = d}
2 answers
62 views
Let be a line given by A + tB and let P be a point on different from A. For point Q not on , show that the distance d of Q form
2 answers
49 views
Let be the line x = 1 + 2t, y = -1 + 3t, z = -5 + 7t. Find the two points on at a distance 3 units from the plane 2(x-1) +
2 answers
97 views
The set of all points equidistant from (0, 1, 5) and 5, -1, 3) is a plane. Find the equation.
2 answers
68 views
Let k be the set of all numbers which can be written in the form, where a, b are rational numbers. Show that k is a field.
2 answers
54 views
Show that the following sets form subspaces
A)The set of all (x, y) in such that x = y B)The set of all (x, y) in such that x –
2 answers
96 views
If U and W are subspaces of a vector space V, show that and are subspaces.
2 answers
75 views
What is projection vector
2 answers
43 views
Show that abs(A+B)(A-B)<=abs(A)sqr+abs(B)sqr
2 answers
62 views
Decide whether the following vectors are linearly independent or not (on ()
a) ((, 0) and (0, 1) b) (-1, 1, 0) and (0, 1, 2) c)
2 answers
70 views
Find the coordinates of X with respect to the vectors A, B and C
A)X = (1, 0, 0), A = (1, 1, 1), B = (-1, 1, 0), C = (1, 0, -1)
2 answers
52 views
Prove: The vectors (a, b) and (c, d) in the plane are linearly dependent if and only if ad – bc = 0
2 answers
69 views
Find a basis and the dimension of the subspace of generated by
{(1, -4, -2, 1), (1, -3, -1, 2), (3, -8, -2, 7)}.
2 answers
76 views
Let W be the space generated by the polynomials x3 + 3x2 – x + 4, and
2x3 + x2 – 7x – 7. Find a basis and the dimension of
2 answers
68 views
Let V = {(a, b, c, d) ( (4: b – 2c + d = 0}
W = {(a, b, c, d) ( (4: a = d, b = 2c} Find a basis and dimension of a) V b) W c) V
2 answers
72 views
What is the dimension of the space of 2 x 2 matrices? Give a basis for this space. Answer the same question for the space of n x
2 answers
64 views
Find the dimensions of the following
A)The space of n x n matrices all of whose elements are 0 except possibly the diagonal
2 answers
87 views
Let V be a subspace of (3. What are the possible dimensions for V? Show that if
V ((3, then either V = {0}, or V is a straight
2 answers
66 views
Draw table and show un Signed number, Signed number,1’s complement,2’s complement and excess-4 notation for the four bit
2 answers
91 views
Draw table and show un Signed number, Signed number,1’s complement,2’s complement and excess-4 notation for the four bit
2 answers
87 views
Explain the difference between Binary addition and Boolean Logic with the help
of examples.
2 answers
63 views
Write down the six bit sign magnitude notation for:
A.(+7)10 and (-7)10 B.Write the 2’s Complement for (-7)10
2 answers
88 views
There are two ways of representing the numerical values of Various Physical Quantities. Mention those Physical quantities.
2 answers
96 views
What is DBMS?
2 answers
51 views
What is database?
2 answers
105 views
What is database systems?
2 answers
63 views
What is Data management ?
2 answers
51 views
What are constraints?
2 answers
62 views
What is Database system architecture ?
4 answers
58 views
What are the Benefits of database approach?
2 answers
58 views
What is data model?
2 answers
49 views
Show that e1 = (2, 1, 0) and e2 = (1, 1, 0) form a basis of R3
2 answers
41 views
What kinds of attribute?
2 answers
58 views
Let A = (0, 1, 5) ,B = (-sqrt 14,5,1) . Find the angle between A and B.
2 answers
54 views
Let A = (6, -2, 4). Find two vectors C and D which are parallel to A.
2 answers
87 views
Let P = (3,7), Q = (-4,2), R = (5,1), S = (-16,-14).
Is parallel to?
2 answers
62 views
Given three vectors A = (1, 1, 1), B = (-1, 2, 3) and C = (0, 3, 4), find the unit vector in the direction of A+B – C.
2 answers
51 views
The vectors i (1, 0, 0), j = (0, 1, 0) and k = (0, 0, 1) are unit vectors in the direction of positive x, y and z axis,
2 answers
62 views
Suppose A.B = A.C, what can you deduce about A, B and C?
2 answers
54 views
Show that if and only if A.B=0
2 answers
38 views
Let A1, A2, …, Ar be non-zero vectors such that Ai.Aj = o if .
Let c1, c2, …., cr be numbers such that c1A1+ c2A2+…..+ crAr
2 answers
44 views
If A and B are parallel, what is AxB?
If A and B are orthogonal, What is AxB?
2 answers
51 views
Find a unit vector perpendicular to both A = (2,-3,1) and B = (1,2,-4).
2 answers
58 views
What is the difference between analogue way form and digital way form?
2 answers
61 views
How we can change binary number to two's complement ?
2 answers
54 views
Convert (156)10 to binary, octal,hexadecimal ?
2 answers
63 views
What is MSB and LSB with example?
2 answers
45 views
4-variable karnaugh maps. Draw the k-map
2 answers
72 views
How we can do exess -4
2 answers
41 views
How we can do exess -4 notation
2 answers
73 views
What is the two's complement of (-7)?
2 answers
23 views
Identify the necessary entities and their attributes for your database. Set appropriate. primary key for each entity
2 answers
69 views
What is the excess-4 notation 4 bit table between (-7 up to 7) ?
2 answers
65 views
What is the excess-4 notation
2 answers
72 views
Suppose A.B = A.C, what can you deduce about A, B and C?
2 answers
75 views
Show that if and only if A.B=0?
2. Let A1, A2, …, Ar be non-zero vectors such that Ai.Aj = o if i is different from j. Let c1,
2 answers
54 views
one office of Ambo University Woliso Campus such as:- Registrar
design a database for the office.
2 answers
65 views
Draw the Database Tables for the given information.
1. Students Table: Columns include student ID (Primary Key), name, date of
2 answers
93 views
one office of Ambo University Woliso Campus such as:-Registrar
Assume that you want to design a database for the office that you
2 answers
86 views
Ambo university woliso campus student GPA of my self through my password
2 answers
71 views
How I can hacked password of one office?
2 answers
39 views
Database of AUWC Registrar office
2 answers
53 views
Coding using SQL for register's office
A.Create database and Tables for your selected office B.Insert sample data into each table
2 answers
133 views
What is SQLs?
2 answers
43 views
What is foreign key and pramary keys
2 answers
48 views
10.9.99.154
2 answers
34 views
one office of Ambo University Woliso Campus such as:- Dormitory
design a database for the office that you selected
2 answers
69 views
Foreign keys (DormitoryID, RoomID, StudentID) establish relationships between entities by referring to primary keys from their
2 answers
57 views
Mid-Exam of Intraduction to Economics
Course title: Introduction to Economics Course Code: Econ1011 Academic Year: 2022 G.C. 2014
2 answers
68 views
Part 1: Choose the correct answer among the given alternatives.
1.......is a tabular representation of the relationship b/n
2 answers
74 views
Choose the correct answer among the given alternatives.
1.......is a tabular representation of the relationship b/n quantities of
2 answers
101 views
Choose the correct answer among the given alternatives.
1.......is a tabular representation of the relationship b/n quantities of
2 answers
106 views
1....is a curve that shows the various possible combinations of goods and services that the society can produce given its
2 answers
69 views
5. If a supply curve is a vertical straight line, the value clasticity of supply (e,) is:
C) 12 & 9 D. 0 And what B. >1 E. None
2 answers
66 views
Part 1: Choose the correct answer among the given alternatives (1 pr. each - 10 pts.)
is a tabular representation of the
2 answers
106 views
Let the line L1 passes through the points (5,1,7) and (6,0,8) and the line L2 passes through the points (3,1,3) and . Find the
2 answers
65 views
Let A = (6, -2, 4). Find two vectors C and D which are parallel to A. Are C and D also parallel to each other?
2 answers
40 views
One application of projections of vector arises in the definition of the work done by a force on a moving body. Find another
2 answers
40 views
Find the area of the triangle having vertices at u = (3, -2, -1), v = (1, 3, 2), and w = (-2, 1, 3).
2 answers
22 views
Let the line L1 passes through the points (5,1,7) and (6,0,8) and the line L2 passes through the points (3,1,3) and (-1,3,a).
2 answers
73 views
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