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B
xy+2=2x+y
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C
xy+1=2x+y
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D
1=2y+x
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Solution
The correct option is Cxy+1=2x+y We know, tanθ×cotθ=1 Substituting the corresponding values, (x−1)(y−2)=1 xy−2x−y+2=1 Or, xy+1=2x+y Hence, option 'C' is correct.