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  1. K

    Tìm x , biết: |x - 3| + |3x + 4| - |2x + 1| = 0

    Tìm x , biết: |x - 3| + |3x + 4| - |2x + 1| = 0 Tìm x , biết: |x - 3| + |3x + 4| - |2x + 1| = 0
  2. K

    Find a; b; c satisfy the following conditions: 1/a + 1/b + 1/c = 4/5​

    Find a; b; c satisfy the following conditions: 1/a + 1/b + 1/c = 4/5​​
  3. K

    Find surplus when dividing 3^150 to 425.

    Find surplus when dividing 3150 to 425.
  4. K

    C = 1^1 + 2^2 + 3^3 + ... + 999^999 + 1000^1000: identify 1st 3 digits from left

    C = 11 + 22 + 33 + ... + 999999 + 10001000 Please identify the first three digits from the left of the C.
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