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f(x)=asin(πx+α)+bcos(πx+β)
f(2005)=asin(2005π+α)+bcos(2005π+β)=asin(π+α)+bcos(π+β)=-1
asin(π+α)+bcos(π+β)=-1
asin(α)-bcos(β)=-1
bcos(β)=asin(α)+1
f(2006)=asin(2006π+α)+bcos(2006π+β)=asin(α)+bcos(β)=asin(α)+asin(α)+1
=2asin(α)+1
f(2005)=asin(2005π+α)+bcos(2005π+β)=asin(π+α)+bcos(π+β)=-1
asin(π+α)+bcos(π+β)=-1
asin(α)-bcos(β)=-1
bcos(β)=asin(α)+1
f(2006)=asin(2006π+α)+bcos(2006π+β)=asin(α)+bcos(β)=asin(α)+asin(α)+1
=2asin(α)+1
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