What does OA vector multiply ob vector = 0 mean
When the vector product is 0, there are two possibilities
1. There is a zero vector in the two vectors
2. If two vectors are non-zero vectors, they are perpendicular to each other
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- 1. Let | vector OA | = | vector ob | = 3, ∠ AOB = 60 °, then | vector OA + vector ob|= By the way!
- 2. Given vector | OA | = 1, | ob | = √ 3, OA * ob = 0, point C is on line ab Given vector | OA | = 1, vector | ob | = √ 3, vector OA * vector ob = 0, point C is on line AB, and angle AOC = 30 °, find (1) vector OA * vector OC (2) let vector OC = MOA + nob, find the value of real numbers m and n
- 3. Points a and B (5,0) satisfy the vector OA * vector ob = vector OA * vector Ba, │ vector OA + vector ob = √ 185, and then calculate the a coordinate
- 4. It is known that I is an imaginary unit. In the complex plane, Z1 = 1 + I, Z2 = 2 + 3I correspond to points a and B, O is the origin, and vectors OP, OA and ob satisfy OP = OA + xob, If point P is in the fourth image term Then the value range of X is?
- 5. In the geometric sense of vector, it is the distance (i.e. length) from the point of the vector on the coordinate plane to the origin / / must be to the origin (0,0)? Must go to the origin (0,0)? From point (4,5) to point (2,2), no?
- 6. Given the parallel vector of a plane and two points passing through the plane, how to solve the plane equation
- 7. A plane passing through point (1,0, - 1) and parallel to vectors a = (2,1,1) and B = (1, - 1,0), try to find the plane equation
- 8. If a plane passes through a point (1,0,1) and is parallel to the vectors a = {2,1,1} and B = {1, - 1,0}, the plane equation is solved?
- 9. Given that the plane passes through point m (1, - 1,1) n (0,1, - 3) and is parallel to vector a (1,1,1), the plane equation is solved
- 10. Given the plane intercept equation x / A + Y / B + Z / C = 1, how to get the normal vector of the plane directly through the equation without converting it into a general equation
- 11. Known vectors OA = (1,3), OB = (2,5) Given the vector OA = (1,3), OB = (2,5), OC = (m, m), if AB is perpendicular to BC, what is the real number m
- 12. If the vector OA = (3,2) ob = (4,7), then AB =?
- 13. AO*BO=AB?
- 14. Why vector Bo vector Ao = vector Ba?
- 15. If the vector OA (x, y), then is the vector Ao (- x, - y) Why?
- 16. Is the coordinate of vector Ao the same as that of vector OA?
- 17. Is negative OA vector equal to Ao vector? Note that OA is negative, not asking if OA is equal to Ao vector!
- 18. In quadrilateral ABCD, if vector AB = vector DC, it must be () a diamond B parallelogram C rectangle D square
- 19. In quadrilateral ABCD, AB is parallel to CD, ab = CD, AC bisects ∠ bad, and quadrilateral ABCD is diamond?
- 20. As shown in the figure, in diamond ABCD, the diagonal lines AC and BD intersect at point O. if OA = 4 and ob = 3, the perimeter of diamond ABCD is () A. 5B. 12C. 16D. 20