In ABC is an acute angle and tan is equal to three times of cot . Find the value of $$ {sin^{2} +cosec^{2} -{1 over 2}cot^{2} }$$.

In ABC is an acute angle and tan is equal to three times of cot .

1.	In ABC is an acute angle and tan is equal to three times of cot . Find the value of $$ {sin^{2} +cosec^{2} -{1 over 2}cot^{2} }$$.
A.	$$ {23 over 12}$$
B.	$$ {23 over 9}$$
C.	$$ {23 over 11}$$
D.	$$ {23 over 8}$$
Answer» B. $$ {23 over 9}$$