![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
The following propositions are true:1 The module of a vector is a positive real number 2 If two unit vectors are parallel to each other, the two unit vectors are equal... The following propositions are true:1 The module of a vector is a positive real number 2 If two unit vectors are parallel to each other then the two unit vectors are equal 3 If vector AB = vector CD then ABCD four points form a parallelogram The following propositions are true:1 The module of a vector is a positive real number 2 If two unit vectors are parallel to each other, then these two unit vectors are equal... The following propositions are true:1 The module of a vector is a positive real number 2 If two unit vectors are parallel to each other, then these two unit vectors are equal 3 If the vector AB = vector CD, then the ABCD four points form a parallelogram
1 Error, the module of 0 vector is 0, not a positive real number;2 Error, the parallelism of vectors, including the same and opposite directions of vectors, only two vectors with the same direction of equal magnitude are equal vectors;3 Error, vector AB and vector CD may be on the same line.
1 Error, the module of 0 vector is 0, not a positive real number;2 Error, the parallelism of vectors, including the same and opposite directions of vectors, only the two vectors with the same direction are equal;3 Error, the vector AB and the vector CD may be on the same line.
Given that the vectors a, b are all unit vectors, the following propositional vector a=vector b, the absolute value of vector a is equal to the absolute value of vector b, and vector a is parallel to vector b Which are the real propositions? Why? Given vector A, B is a unit vector, the following proposition vector A = vector B, the absolute value of vector A is equal to the absolute value of vector B, vector A is parallel to vector B Which questions are true? Why?
Given that vectors a, b are all unit vectors, the following propositional vectors a=vector b -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- The absolute value of vector a is equal to the absolute value of vector b,(...
Given that the vectors a, b are all unit vectors, the following propositional vector a=vector b ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ The absolute value of vector a is equal to the absolute value of vector b,
Given that the vectors a, b are all unit vectors, the following propositional vector a=vector b ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ The absolute value of vector a is equal to the absolute value of vector b,(...
The unit vector collinear with vector (-3,-4,5) is
Just divide each number by the length of the vector, so the answer is:(-3,2/10,-4,2/10,5,2/10) or (3,2/10,4,2/10,-5,2/10)
Just divide each number by the length of the vector, so the answer is:(-3 2/10,-4 2/10,5 2/10) or (3 2/10,4 2/10,-5 2/10)
The unit vector collinear with vector (2,3) is
A:
√(2²+3²)=√13
So it is (2√13/13,3√13/13), or (-2√13/13,-3√13/13)
Let vector A (3,-4) be the unit vector collinear with A. Seek explanation Let A (3,-4) be the unit vector of A. Seek explanation
(3/5,-4/5) Let the unit vector be (x, y), because it is collinear with vector A,3y+4x=0. And x2+y2=1
Given the vector a=(2,3), b=(1,1), the unit vector in the same direction as a+b is? A, b have a right arrow on top Given the vector a=(2,3), b=(1,1), the unit vector in the same direction as a+b is? A, b have right-facing arrows on top
A + b =(3,4) then n =(3/5,4/5)
RELATED INFORMATIONS
- 1. If the vector a (1,1,0) is known, then the unit vector e is?
- 2. How to Judge the Pairwise Orthogonal of Vector Groups in Linear Algebra
- 3. 1. Given linear independence of n-dimensional vector a1a2... a (n-1), non-zero vector b is orthogonal to ai to prove a1,a2,a3...a (n-1), b is linear independence 2 The following vectors are organized into standard vector group a1=(1,-1,1) Ta2=(-1,1) Ta3=(1,1-1) T3 by Schmidt standard orthogonalization method Let a=(a1a
- 4. AM is known that AM is the center line on BC in triangle ABC, and the vector method is used to prove that: AM^2=1/2(AB^2+AC^2)-BM^2 AM is known to be the median line on BC in triangular ABC, and the vector method is used to prove that: AM^2=1/2(AB^2+AC^2)-BM^2
- 5. State reasons 1. Given vector AB =2, vector CD =4, the angle between vector AB and vector CD is 60°, Find (1) vector AB+vector CD (2) Vector AB + angle between vector CD and vector AB State reasons 1. Given that vector AB =2, vector CD =4, the angle between vector AB and vector CD is 60°, Find (1) vector AB+vector CD (2) Vector AB + angle between vector CD and vector AB
- 6. Vector Proving Problem (λa)·b=λ(a·b)=a·(λb) Two Proofs of Vector Algorithm (λA)·b=λ(a·b)=a·(λb) A·b=a·ca⊥(b-c)
- 7. What Is the Necessary and Sufficient Condition for Linear Independence of n-dimensional Column Vector What is the Necessary and Sufficient Condition for Linear Independence of n-dimensional Column Vector
- 8. The Proof of Four-Point Coplanar of Space Vector If ABC three points are not collinear, take any one point P to prove ABCP four points are collinear. There must be a clear process! The Proof of Four-Point Coplanar of Space Vector If ABC three points are not collinear, any point P is taken to prove ABCP four points are collinear. There must be a clear process! The Proof of Four-Point Coplanar of Space Vector If ABC three points are not collinear, take any point P to prove ABCP four points are collinear. There must be a clear process!
- 9. O is the inner triangle if and only if aOA vector + bOB vector + cOC vector =0 vector.
- 10. Known vector A =(3,2), B =(x,4) and A∥ B, the value of x is () A.-6 B.6 C.8 3 D.-8 3
- 11. Must two collinear vectors be the same or opposite? What if one of them is a zero vector?
- 12. Is the zero vector in the same direction as the zero vector? Is the zero vector the same direction as any non-zero vector? Is the zero vector in the same direction as the zero vector? Is the zero vector the same as any non-zero vector?
- 13. Is the addition of two vectors the addition of two vectors?
- 14. Given the points A (1,3), B (4,-1), then the vector The unit vector of AB in the same direction is ______. Given points A (1,3), B (4,-1), then the vector The unit vector of AB in the same direction is ______. Given the point A (1,3), B (4,-1), then the vector The unit vector of AB in the same direction is ______.
- 15. Excuse me: vector multiplied by a non-zero vector equal to the zero vector?
- 16. Let α be n-dimensional column vector and E be n-order identity matrix. It is proved that A=E-2 T/( Tα) is an orthogonal matrix.
- 17. True or False: Vector a=(1,1) and vector b=(t,-t) must be parallel to each other. True or False: vector a =(1,1) and vector b =(t,-t) must be parallel to each other.
- 18. If any n-dimensional nonzero vector is the eigenvector of n-order matrix A, then A is a quantitative matrix If any n-dimensional nonzero vector is the eigenvector of n-order matrix A, then A is a quantity matrix
- 19. The constant 0 is multiplied by a non-zero vector equal to the zero vector, then the zero vector is multiplied by a non-zero vector equal to zero or zero vector
- 20. What is the modulus of a + b + c if the vectors a, b, c are two equal angles and the modulus of a is equal to 1, the modulus of b is equal to 1, the modulus of c is equal to 3? Just explain how it's equal to 2,5. What is the modulus of a + b + c if the two vectors a, b, c form equal angles and the modulus of a is equal to 1, the modulus of b is equal to 1, the modulus of c is equal to 3? Just explain how it's equal to 2,5.