Math Problem Statement
Sebuah A⃗ membuat sudut 30o dengan vektor satuan i⃗ dan 60o dengan vektor satuan j⃗, tentukan:a. Sudut yang dibentuk oleh A⃗ dengan vektor satuan k⃗⃗
b. Vektor satuan dari A⃗
c. A⃗ dengan |A⃗| = 4
Solution
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Math Problem Analysis
Mathematical Concepts
Vector Geometry
Trigonometry
Three-Dimensional Vectors
Formulas
cos^2(θx) + cos^2(θy) + cos^2(θz) = 1
Unit vector formula: Â = A/|A|
Cosine of angles for vector components: Â = cos(θx)î + cos(θy)ĵ + cos(θz)k̂
Theorems
Pythagorean identity in three-dimensional space
Trigonometric functions for vector projections
Suitable Grade Level
Grades 10-12
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