KEAM 2016 Math Paper

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Question : 46 of 120

Marks: +1, -0

If tan‌A−tan‌B=x and cot‌B−cot‌y, then cot(A+B) is

1
x−y
1
x+y
1
x
+y
1
x
−
1
y
1
x
+
1
y

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