已知sin(7π-α)-3cos(π-α)=2,则(sin(π-α)+cos(π+α))/(sinα+cos(-α))的值是
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![已知sin(7π-α)-3cos(π-α)=2,则(sin(π-α)+cos(π+α))/(sinα+cos(-α))的值是](/uploads/image/z/8858683-19-3.jpg?t=%E5%B7%B2%E7%9F%A5sin%287%CF%80-%CE%B1%29-3cos%28%CF%80-%CE%B1%29%3D2%2C%E5%88%99%28sin%28%CF%80-%CE%B1%29%2Bcos%28%CF%80%2B%CE%B1%29%29%2F%28sin%CE%B1%2Bcos%28-%CE%B1%29%29%E7%9A%84%E5%80%BC%E6%98%AF)
已知sin(7π-α)-3cos(π-α)=2,则(sin(π-α)+cos(π+α))/(sinα+cos(-α))的值是
已知sin(7π-α)-3cos(π-α)=2,则(sin(π-α)+cos(π+α))/(sinα+cos(-α))的值是
已知sin(7π-α)-3cos(π-α)=2,则(sin(π-α)+cos(π+α))/(sinα+cos(-α))的值是
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