Math Problem Statement
Найти косинус угла между диагоналями параллелограмма ABCD, если A(1,2,0), B(-2,1,1), D(3,-1,3)
Solution
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Vector Algebra
Analytic Geometry
Formulas
Vector diagonal AC = A + D - B
Cosine of the angle between vectors: cos(θ) = (AC · BD) / (|AC| |BD|)
Theorems
Cosine Rule for Vectors
Suitable Grade Level
Grades 10-12
Related Recommendation
Finding the Angle Between Diagonals of a Parallelogram Constructed on Vectors
Determine if a Quadrilateral is a Parallelogram, Rhombus, Rectangle, or Square and Solve for Parameter t in an Isosceles Triangle
Find the Area of a Parallelogram Using Vectors and Cross Product
Angle Between Vectors 2A and -3A: Understanding Opposite Directions
Finding Angles in a 3D Structure Using Vectors and the Dot Product