For the smallest positive values of xa n...

For the smallest positive values of `xa n dy ,` the equation `2(sinx+sin y)-2cos(x-y)=3` has a solution, then which of the following is/are true? (a)`sin(x+y)/2=1` (b) `cos((x-y)/2)=1/2` (c)number of ordered pairs `(x , y)` is 2 (d)number of ordered pairs `(x , y)i s3`

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