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Posted on April 25, 2022 (Updated on July 9, 2025)

What is the result of a cross product?

Space & Navigation

The resultant of cross product of two vectors is a vector quantity. Vector cross product represents two vectors are orthogonal or perpendicular to the vector plane.

What does the cross product show?

The cross product a × b is defined as a vector c that is perpendicular (orthogonal) to both a and b, with a direction given by the right-hand rule and a magnitude equal to the area of the parallelogram that the vectors span.

What is the answer of a cross product?

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

Why does the cross product work?

Video quote: Product is going to be another vector. We're also of course the dot. Product was a scalar value it was a real number. And this vector a cross B is going to be defined by three properties.

Why is the cross product a determinant?

Connection with the Determinant



There are theoretical reasons why the cross product (as an orthogonal vector) is only available in 0, 1, 3 or 7 dimensions. However, the cross product as a single number is essentially the determinant (a signed area, volume, or hypervolume as a scalar).

What are the properties of cross product?

Properties of Cross Product

  • General Properties of a Cross Product. Length of two vectors to form a cross product. |→a×→b|=|a||b|sinθ …
  • Vector Triple Product Properties. The vector quantity is the vector triple product – →a.( →b×→c)=(→a×→b). …
  • Properties of The Scalar Triple Product.


Why is the cross product orthogonal?

If a vector is perpendicular to a basis of a plane, then it is perpendicular to that entire plane. So, the cross product of two (linearly independent) vectors, since it is orthogonal to each, is orthogonal to the plane which they span.

How do you remember Cross products?

Video quote: And so then we start at the sequence 2 3 1 2 3 & 1 and so from this we can just say okay – we're gonna go down. And then we go up and then we do it from 3 we go down till. We get to here.

What does a cross product of 0 mean?

parallel to

If cross product of two vectors is zero then the two vectors are parallel to each other or the angle between them is 0 degrees or 180 degrees. It also means that either one of the vectors or both the vectors are zero vector.

What is the difference between cross product and dot product?

The major difference between dot product and cross product is that dot product is the product of magnitude of the vectors and the cos of the angle between them, whereas the cross product is the product of the magnitude of the vector and the sine of the angle in which they subtend each other.

Does cross product order matter?

One additional thing you can note with the right hand rule is that switching the order of the two input vectors (switching A and B) would result in the cross product pointing in exactly the opposite direction. This is because the cross product operation is not communicative, meaning that order does matter.

What happens when you dot product a cross product?

The main difference between the dot product and the cross product of two vectors is that the result of the dot product is a scalar quantity, whereas the result of the cross product is a vector quantity. A dot product of two vectors is also called the scalar product.

What is a cross product in physics?

Cross product is a binary operation on two vectors in three-dimensional space. It results in a vector that is perpendicular to both vectors. The Vector product of two vectors, a and b, is denoted by a × b. Its resultant vector is perpendicular to a and b. Vector products are also called cross products.

What is the result when getting the cross product of two unit vectors lying on the same axis?

The cross product of two vectors results in a vector that is orthogonal to the two given vectors. The direction of the cross product of two vectors is given by the right-hand thumb rule and the magnitude is given by the area of the parallelogram formed by the original two vectors →a a → and →b b → .

What is the cross product of two unit vectors?

The cross product of two unit vectors is always a unit vector. 2. The dot product of two unit vectors is always unity.

What is the cross product of two vectors equal to?

The length of the cross product of two vectors is equal to the area of the parallelogram determined by the two vectors (see figure below).

What are cross products and how do they relate to proportions?

A cross product is the result of multiplying the numerator of one ratio with the denominator of another. If the cross products are equal, then the ratios are proportional.

How do you use cross product?

Four primary uses of the cross product are to: 1) calculate the angle ( ) between two vectors, 2) determine a vector normal to a plane, 3) calculate the moment of a force about a point, and 4) calculate the moment of a force about a line.

What happens to the cross products when the terms of a proportion are cross multiplied?

When the terms of a proportion are cross multiplied, the cross products are equal. Cross multiplication is the multiplication of the numerator of the first ratio by the denominator of the second ratio and the multiplication of the denominator of the first ratio by the numerator of the second ratio.

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