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Continue to ChatSi a, b ∈ ℝ, entonces |a| - |b| ≤ |a - b| https://www.glc.us.es/~jalonso/calculemus/si-a-b-%e2%88%88-%e2%84%9d-entonces-a-b-%e2%89%a4-a-b/
Si a, b ∈ ℝ, entonces |a| - |b| ≤ |a - b| https://www.glc.us.es/~jalonso/calculemus/si-a-b-%e2%88%88-%e2%84%9d-entonces-a-b-%e2%89%a4-a-b/