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solve函数求解时出现错误，找不到原因。
solve('y-153*(-0.005222*(sqrt(21*exp(0.0053*21))*exp(0.0038*y))^2+0.07735*(sqrt(21*exp(0.0053*21))*exp(0.0038*y))+0.1852)','y')
solve函数求解时出现错误，找不到原因。
solve('y-153*(-0.005222*(sqrt(21*exp(0.0053*21))*exp(0.0038*y))^2+0.07735*(sqrt(21*exp(0.0053*21))*exp(0.0038*y))+0.1852)','y')
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