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12. Triangle Inequality
12.0.1. Vector Triangle Inequality
‖
𝑢
⃗
+
𝑣
⃗
‖
≤
‖
𝑢
⃗
‖
+
‖
𝑣
⃗
‖
‖
𝑢
⃗
+
𝑣
⃗
‖
=
‖
𝑢
⃗
‖
+
‖
𝑣
⃗
‖
𝑢
⃗
=
𝑐
𝑣
⃗
𝑐
>
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