Recent content by ahmadmath

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    Solving Finite Series with Real Y

    I think it is so hard to do that in this manner because it is so hard to predict which terms should be positive or negative
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    Solving Finite Series with Real Y

    thanks but I am not sure what you mean
  3. A

    Solving Finite Series with Real Y

    I had tried but it doesnot work it works just when there are no absolute values
  4. A

    Solving Finite Series with Real Y

    I cannot figure out the sum of this finite series: |ysin(x)|+|y2sin(2x)|+...+|ynsin(nx)| where y is real. so I want to listen any opinion may help me>
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