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Vectors & Spaceseasy
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The magnitude of ⟨a,b,c⟩\langle a, b, c \rangle⟨a,b,c⟩ equals a2+b2+c2\sqrt{a^2+b^2+c^2}a2+b2+c2​. Compute ∥⟨1,−2,2⟩∥\|\langle 1, -2, 2 \rangle\|∥⟨1,−2,2⟩∥.