Math Problem Statement
Даны два вектора а=(8,4,1), б=(2,-2,1). Найти вектор с, компланарный векторам а и б, перпендикулярный к вектору а, равный ему по длине и образующий с вектором б тупой угол
Solution
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Math Problem Analysis
Mathematical Concepts
Vector Algebra
Scalar Product
Vector Length
Coplanarity
Orthogonality
Formulas
Scalar product: a ⋅ b = |a| |b| cos(θ)
Vector length: |a| = sqrt(x^2 + y^2 + z^2)
General form of a coplanar vector: c = λb + μa
Theorems
Scalar product theorem
Pythagorean theorem in vector length calculation
Suitable Grade Level
University level, Advanced Mathematics
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