Math Problem Statement

dados los puntos P(-2,-3), Q(3,1), R(1,3) hallar el angulo que forman las rectas que pasan por PQ y PR

Solution

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Math Problem Analysis

Mathematical Concepts

Analytical Geometry
Angles between lines
Trigonometry

Formulas

Slope formula
Angle between two lines formula
Arctangent function

Theorems

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Suitable Grade Level

Grades 10-12