Math Problem Statement

resuelve: Dados los vectores

 u=\left(-2,5,5\right)\text{ y} $$$$ v=\left(4,-10,\text{ k}\right)

hallar el valor de k  para que el ángulo comprendido entre ellos sea 60º.

Solution

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Math Problem Analysis

Mathematical Concepts

Vectors
Dot product
Angle between vectors
Trigonometry

Formulas

Dot product formula
Angle between vectors formula

Theorems

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Suitable Grade Level

High School