How do you get answers on Webwork?

How do you get answers on Webwork?

1) Go to the webwork problem of interest, and click to put a check in the box for Show correct answers. Then press the Check Answers button. 2) You will then see a link called SOLUTION just below the statement of the problem.

How do you submit homework on Webwork?

Submit your answers

1. Click on a problem set and click ‘Do Problem Set’
2. You should see the list of problems available.
3. Click on Problem 1.
4. Select a type setting mode.
5. Click on ‘Get Problem’
6. Enter your answer and ‘Preview Answer’
7. Click on ‘Submit Answer’ to submit your answer for a grade.

Can Webwork be proctored?

For exams we are using the online proctoring service Examity. We want students to all do the exam within the same 12 hour window, but once started the student has 90 minutes to finish. So, we set up the exams in webwork as proctored gateway quizzes.

How do I log into Webwork?

Log on to WeBWorK: Go to: http://webwork.math.ttu.edu/webwork2/DSGspr05m1352/ This will get you to the main login page of your course. You must have a user login name and a password which I will send to you via email or you can get it from me in my office.

How do you write exponents in WeBWorK?

Mathematical Symbols Available In WeBWorK[edit]

1. + Addition.
2. – Subtraction.
3. * Multiplication can also be indicated by a space or juxtaposition, e.g. 2x, 2 x or 2*x, also 2(3+4).
4. / Division.
5. ^ or ** You can use either ^ or ** for exponentiation, e.g. 3^2 or 3**2.

How do you write roots in WeBWorK?

For square roots, you can use sqrt() or the exponent (1/2). For example, the square root of two in WeBWorK is either sqrt(2) or 2^(1/2). For cube roots, use the exponent (1/3). The cube root of 7 is then 7^(1/3).

How do you write a vector in WeBWorK?

WeBWorK allows you to enter vectors either as a list of coordinates enclosed in angle braces, < and >, or as a sum of multiples of the coordinate unit vectors, i, j and k, which you enter as i, j and k. For example, <1, 3, -2> represents the same vector as i+3j-2k.

How do you write a vector?

The vector here can be written OQ (bold print) or OQ with an arrow above it. Its magnitude (or length) is written OQ (absolute value symbols). A vector may be located in a rectangular coordinate system, as is illustrated here. The rectangular coordinate notation for this vector is v : ∂6, 3∑ or v : ∂6, 3∑.

How do you type in WeBWorK?

One answer is x>=0 (x is greater than or equal to 0). The best way to enter this in WeBWorK is by using interval notation: [0,infinity). Other intervals: (2,3] is the set .

What is the geometric interpretation of the dot product?

for the dot product of any two vectors v and w. w Figure 1: The dot product is fundamentally a projection. The geometry of an orthonormal basis is fully captured by these properties; each basis vector is normalized, which is (3), and each pair of vectors is orthogonal, which is (5).

What does scalar mean?

Definition of scalar (Entry 2 of 2) 1 : a real number rather than a vector. 2 : a quantity (such as mass or time) that has a magnitude describable by a real number and no direction.

Why is dot product scalar?

The simple answer to your question is that the dot product is a scalar and the cross product is a vector because they are defined that way. The dot product is defining the component of a vector in the direction of another, when the second vector is normalized. As such, it is a scalar multiplier.

Why is dot product used?

An important use of the dot product is to test whether or not two vectors are orthogonal. Two vectors are orthogonal if the angle between them is 90 degrees. Thus, two non-zero vectors have dot product zero if and only if they are orthogonal.

Can dot product be negative?

Answer: The dot product can be any real value, including negative and zero. The dot product is 0 only if the vectors are orthogonal (form a right angle).

What does it mean if the dot product is 1?

If you already know the vectors are both normalized (of length one), then the dot product equaling one means that the vectors are pointing in the same direction (which also means they’re equal). For example, 2D vectors of (2, 0) and (0.5, 0) have a dot product of 2 * 0.5 + 0 * 0 which is 1 .

Is dot product scalar or vector?

The Dot Product gives a scalar (ordinary number) answer, and is sometimes called the scalar product. But there is also the Cross Product which gives a vector as an answer, and is sometimes called the vector product.

Is product of two vectors a scalar?

Dot product – also known as the “scalar product”, an operation that takes two vectors and returns a scalar quantity. The dot product of two vectors can be defined as the product of the magnitudes of the two vectors and the cosine of the angle between the two vectors.

Is the cross product of two vectors a vector?

One type, the dot product, is a scalar product; the result of the dot product of two vectors is a scalar. The other type, called the cross product, is a vector product since it yields another vector rather than a scalar.

What is the meaning of scalar product?

: a real number that is the product of the lengths of two vectors and the cosine of the angle between them. — called also dot product, inner product.

What is scalar product used for?

Using the scalar product to find the angle between two vectors. One of the common applications of the scalar product is to find the angle between two vectors when they are expressed in cartesian form.

What are the properties of scalar product?

Properties of the scalar product

• The scalar product of a vector and itself is a positive real number: u → ⋅ u → ⩾ 0 .
• The scalar product is commutative: u → ⋅ v → = v → ⋅ u → .
• The scalar product is pseudoassociative: α ( u → ⋅ v → ) = ( α u → ) ⋅ v → = u → ⋅ ( α v → ) where is a real number.

What are the characteristics of scalar product?

Characteristics of the Scalar Product:

• Scalar product obeys the distributive law of multiplication.
• a and b are two vectors perpendicular to each other, if and only if a · b = b · a = 0.
• a and b are two vectors parallel to each other, if and only if a · b = b · a = ab.

What is the difference between scalar and vector product?

Usually, both these terms sound the same, but there is a difference between scalar and vector quantities. Both these quantities are used to represent the motion of an object….

Difference Between Scalar and Vector
One scalar quantity can divide another scalar	One vector cannot divide another vector

Why cross product is a vector quantity?

Cross product of two vectors results in a vector quantity always. If A and B are two vectors, then the resultant vector of cross product of A and B, has both magnitude and direction, whereas the dot product of two vectors only gives the magnitude of the vector. …

What is scalar and vector?

A quantity which does not depend on direction is called a scalar quantity. Vector quantities have two characteristics, a magnitude and a direction. Scalar quantities have only a magnitude. When comparing two vector quantities of the same type, you have to compare both the magnitude and the direction.

How do you know if a quantity is scalar or vector?

A vector quantity has a direction and a magnitude, while a scalar has only a magnitude. You can tell if a quantity is a vector by whether or not it has a direction associated with it. Example: Speed is a scalar quantity, but velocity is a vector that specifies both a direction as well as a magnitude.

What are the examples of vector quantity?

For example, displacement, velocity, and acceleration are vector quantities, while speed (the magnitude of velocity), time, and mass are scalars. To qualify as a vector, a quantity having magnitude and direction must also obey certain rules of combination.

Is work a vector quantity?

Complete answer: Also, we know that work is a dot product of vectors force and the displacement. Since, the dot product is a scalar quantity. So, work is a scalar quantity, it has only magnitude not direction.