If $$ {cot A={n over{n+1}}}$$ and $$ {cot B={1 over{2n+1}}}$$ then what is the value of cot (A + B)?

If $$ {cot A={n over{n+1}}}$$ and $$ {cot B={1 over{2n+1}}}$$ then wha

1.	If $$ {cot A={n over{n+1}}}$$ and $$ {cot B={1 over{2n+1}}}$$ then what is the value of cot (A + B)?
A.	1
B.	0
C.	-1
D.	2
Answer» D. 2