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∣∑j=0100x2j+1x2j∣ \Large \left | \sum_{j=0}^{100} x^{2^j} + \dfrac1{x^{2^j}}\right | ∣∣∣∣∣∣∣∣j=0∑100x2j+x2j1∣∣∣∣∣∣∣∣
Given that xxx is a complex number satisfying the constraint x+1x=1 x + \dfrac1x = 1x+x1=1, find the value of the expression above.
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