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If $A + B = 225^{o}$ then the value of $\frac{\cot A}{1 + \cot A} . \frac{\cot B}{1 + \cot B} =$

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Correct option is D

If A+B=225° then (1+cotA)(1+cotB)=2cotAcotB∴cotA·cotB(1+cotA)(1+cotB)=cotAcotB2cotAcotB=12

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If A+B=225othen the value ofcotA1+cotA.cotB1+cotB=

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If $A + B = 225^{o}$ then the value of $\frac{\cot A}{1 + \cot A} . \frac{\cot B}{1 + \cot B} =$