Question: 4. If and find sin(x) + sin(y) = 1 cos(x) + cos(y) = 1 tan(- x+y


4. If and find sin(x) + sin(y) = 1 cos(x) + cos(y) 

4. If and find sin(x) + sin(y) = 1 cos(x) + cos(y) = 1 tan(- x+y

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