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[" 15.If "A+B=225%" ,then the value of "...

[" 15.If "A+B=225%" ,then the value of "((cot A)/(1+cot A))*((cot B)/(1+cot B))" is "],[[" (A) "2," (B) "(1)/(2)," (C) "3," (D) "]]

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