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Math Help - Problem in complex number

  1. #1
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    Problem in complex number

    Given that z₁ = 3 2i and z₂ = -1 + 7i show that
    |z₁ + z₂| < | z₁ + z₂| < | z₁| + |z₂|

    How can I solve that? Please help me.
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  2. #2
    Senior Member Peritus's Avatar
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    just substitute the given complex numbers in the inequality, then take the modulus.
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  3. #3
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    Thanks Peritus.
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