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v in (-oo:+oo)
3/4 = v^14 // - v^14
3/4-v^14 = 0
-1*v^14 = -3/4 // : -1
v^14 = 3/4
v^14 = 3/4 // ^ 1/14
abs(v) = (3/4)^(1/14)
v = (3/4)^(1/14) or v = -(3/4)^(1/14)
v in { (3/4)^(1/14), -(3/4)^(1/14) }
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