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[" We eoit "x+sin(pi cos0)=cos(pi sin th...

[" We eoit "x+sin(pi cos0)=cos(pi sin theta)" ,then the value "],[" of "cos(0+(pi)/(4))=],[" A."sqrt(2)" b) "(1)/(sqrt(2))" Cr "-2sqrt(2)" d) "(1)/(2sqrt(2))]

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