Math Problem Statement

Bestäm (kortaste) avståndet mellan linjen som går genom punkterna

(−3,−5,−4)  samt (−2,−6,−7)

och linjen som ges av ekvationerna

3+x=1+1/2 y=1+1/2 z

Solution

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Math Problem Analysis

Mathematical Concepts

Vector Algebra
Line Parametrization
Cross Product
Distance Between Lines

Formulas

Parametric form of a line: r(t) = r_0 + tv
Distance between two lines: d = |(r2(0) - r1(0)) ⋅ (v1 × v2)| / |v1 × v2|
Cross product: v1 × v2 = |i j k| |v1_x v1_y v1_z| |v2_x v2_y v2_z|

Theorems

Cross Product Theorem
Vector Distance Formula

Suitable Grade Level

Grades 10-12