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X in (-oo:+oo)
X = (6/13)^14 // - (6/13)^14
X-(6/13)^14 = 0
X-78364164096/3937376385699289 = 0 // + 78364164096/3937376385699289
X = 78364164096/3937376385699289
X = 78364164096/3937376385699289
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