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# What will be the change if a vector is multiplied by -2?

Updated: 9/21/2023

Wiki User

12y ago

It will be twice as large as the original and have the opposite direction.

Wiki User

12y ago

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Q: What will be the change if a vector is multiplied by -2?
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### How will you multiply a vector by positive number?

A positive scalar multiplied by a vector, will only change the vector's magnitude, not the direction. A negative scalar multiplied by the vector will reverse the direction by 180&Acirc;&deg;.

### When does the vector duplicates?

When it is multiplied by 2.

### When a vector is multiplied by a scalar physical quantitythen what will be dimensions of resulting vector?

The same as the original vector. The scalar will change the numbers, but not the dimensions.

### Mathematics if a raw vector is multiplied by a column vector what is the product?

if a column vector such as x y is multiplied by a raw vector such as ( 2 0), ( 2 o) x y = 2x so 2x is the image of x y

### Can vector quantity be divided and multiplied?

Vector quantities can be added and subtracted using vector addition, but they cannot be divided like scalar quantities. However, vectors can be multiplied in two ways: by scalar multiplication, where a scalar quantity is multiplied by the vector to change its magnitude, or by vector multiplication, which includes dot product and cross product operations that result in a scalar or vector output.

### Can a scalar quantity be the product of 2 vector quantities?

No, a scalar quantity cannot be the product of two vector quantities. Scalar quantities have only magnitude, while vector quantities have both magnitude and direction. When two vectors are multiplied, the result is a vector, not a scalar.

### What is meant by vector in interrupts?

i had 2 change what i thought

### Is the cross product vector or scalar?

The cross product is a vector. It results in a new vector that is perpendicular to the two original vectors being multiplied.

### What is a vector times iteself?

When a vector is multiplied by itself, it is known as the dot product. The result is a scalar quantity, which represents the projection of one vector onto the other. This operation is different from vector multiplication, where the result is a new vector.

### Multiplying or dividing vectors by scalars results in what?

When multiplying a vector by a scalar, each component of the vector is multiplied by the scalar. This operation changes the magnitude of the vector but not its direction. Similarly, dividing a vector by a scalar involves dividing each component of the vector by the scalar.

### When does a vector remain unchanged?

A vector remains unchanged when it is multiplied by a scalar of 1. This is because multiplying a vector by a scalar of 1 effectively scales the vector without changing its direction.

### How does the volume of a cube change if its dimenstions are doubled?

The volume is multiplied by 2*2*2 = 8