![](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>)
What is the condition for two vectors to be parallel
0
Are the two vectors parallel and perpendicular? Are the two vectors parallel and perpendicular in relation to each other? Are the two vectors parallel and perpendicular to each other?
A=(x1, y1), b=(x2, y2)
A∥b=> x1y2=x2y1
A⊥b=> x1x2+y1y2=0
A=(x1, y1), b=(x2, y2)
A//b=> x1y2=x2y1
A⊥b=> x1x2+y1y2=0
A condition in which two vectors are parallel and perpendicular. The condition that two vectors are parallel and perpendicular.
0
What is the necessary and sufficient condition for two vectors to be collinear?
0
A necessary and sufficient condition for two nonzero vectors a, b to be parallel is _____.
0
The vector a and the vector b are parallel if and only if
0
RELATED INFORMATIONS
- 1. Why isn't the necessary and sufficient condition for two vectors to be parallel a. b=|a b|? A, b are non-zero vectors. Please give an example, Why isn't the necessary and sufficient condition for two vectors to be parallel a·b=|a b|? A, b are non-zero vectors.
- 2. If the vector a=[ x+1,2), b=[1, x], then a is vertical b if and only if
- 3. Given vector a=(2,1), ab=10.,{ a+b }=5 times root 2. Then b=? 5+2*10+B^2b^2 Given the vector a=(2,1), ab=10.,{ a+b }= times root 2. Then b=? 5+2*10+B^2+b^2 Given the vector a=(2,1), ab=10.,{ a+b }=5 times root 2. Then b=? How do I get 5+2*10+b^2
- 4. Why is the direction vector of the distance from the midpoint of the space vector to the line?
- 5. How to solve the problem of distance between straight lines, distance from point to plane and distance between two parallel planes by vector calculation
- 6. If vector a and vector b are both unit vectors and the angle between vector a and vector b is 60°, then |vector a+vector b|=?
- 7. What is the unit vector a0 in the same direction as vector a=(1,2
- 8. If the vectors a and b are not collinear, a*b is not equal to 0. And c=a-[(a*a)/(a*b)] b, the angle between a and c is? Vector,* Multiplied by point Please don't give me answers that have been answered. If the vectors a and b are not collinear, a*b is not equal to 0, and c=a-[(a*a)/(a*b)] b, the angle between a and c is? Vector,* is a point multiplication Please don't give me answers that have been answered. If the vectors a and b are not collinear, a*b is not equal to 0. And c=a-[(a*a)/(a*b)] b, the angle between a and c is? Vectors,* for dot multiplication Please don't give me answers that have been answered.
- 9. Given that O is a fixed point on the plane, A, B and C are three non-collinear points on the plane, and the moving point p satisfies the vector OP=OA (AB+AC) Then P's trajectory must pass through what heart of △ABC? λ∈[0, Positive infinity] Given that O is a fixed point on the plane, A, B and C are three non-collinear points on the plane, and the dynamic point p satisfies the vector OP=OA (AB+AC) Then P's trajectory must pass through what heart of △ABC? λ∈[0, Positive infinity]
- 10. Vector subtraction algorithm? For example, if vector m=(2,3), vector n (0,5), then what is vector m minus vector n?
- 11. Can the normal vector perpendicularity of two planes prove that two planes are perpendicular? Does this prove that the two planes are perpendicular?
- 12. Vector Method for Calculating Line Angle Equal to Sine or Cosine
- 13. Given that a, b is a nonzero vector and satisfies (a-2b) perpendicular to a and (b-2a) perpendicular to b, then what is the angle between a and b? Given that a, b is a nonzero vector and satisfies (a-2b) perpendicular to a and (b-2a) perpendicular to b, then is the angle between a and b?
- 14. A, b non-zero vector, satisfy |a+b|=|a-b| Why is the vector a vertical vector b?
- 15. Given that a and b are nonzero vectors, let θ be the angle between a and b, and ask if there is θ, so that |a+b|=3|a-b| under the root sign Find θ Given that a and b are nonzero vectors, let θ be the included angle between a and b, and ask if θ exists, so that |a+b|=3|a-b| under the root sign Find θ
- 16. Vector a, vector b is nonzero, if |vector a+vector b|=|vector a-vector b|, then the angle between vector a and vector b is?
- 17. Given three points A (-2,0,2), B (-1,1,2), C (-3,0,4), let a=AB, b=AC (1), find the angle between vector a and vector b.(2) If... A (-2,0,2), B (-1,1,2), C (-3,0,4) Let a=AB, b=AC (1) Find the angle between vector a and vector b.(2) If vector ka+b and vector ka-2b are perpendicular to each other, find the value of k.
- 18. In ΔABC, D, E and F are the midpoint of AB, BC and CA respectively. BF and CD intersect at point O. Let vector AB=a and vector AC=b. Prove that AOE three points are on the same straight line, and AO: OE=BO: OF=CO: OD=2 Supplement to question: the answer is AE =1/2(a+b), so AO =(2/3) AE AO =(2/3) AE, how is this obtained?
- 19. Excuse me. A (5,1). B (7,10). Vector AB (how to calculate? , Answer is (2,9)
- 20. Given the rectangle ABCD-A' B' C' D', simplify the following vector expressions and mark out the vector of the simplified result. {1} Small arrow above AB + small arrow above BB'; {2} AB plus small arrow + BC plus small arrow + BB' plus small arrow. Given the rectangle ABCD-A' B' C' D', the following vector expression is simplified and the vector of the simplified result is marked. {1} Small arrow above AB + small arrow above BB'; {2} AB plus small arrow + BC plus small arrow + BB' plus small arrow.