Math Problem Statement

Diketehui vektor a=( -2, p, 2√2) vektor b = [1, 1, √2] Jika vektor a dan vektor b membentuk sudut 60°, tentukan nilai kosinus vektor a dan vektor a + b !

Solution

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Math Problem Analysis

Mathematical Concepts

Vectors
Dot Product
Trigonometry

Formulas

Dot product formula
Cosine formula for angle between vectors

Theorems

Cosine rule for vectors

Suitable Grade Level

Undergraduate