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If x=0,x=0, x=0, then x−x2+x3−x4+⋯=0.x - x^2 + x^3 - x^4 + \cdots = 0.x−x2+x3−x4+⋯=0.
Which of the following is the value of y−y2+y3−y4+⋯ ,y - y^2 + y^3 - y^4 + \cdots , y−y2+y3−y4+⋯, where yyy is some real number?
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