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Q: In ΔABC θ is an acute angle and tanθ is equal to three times of cotθ. Find the value of $$ {sin^{2}θ+cosec^{2}θ-{1\over 2}cot^{2}θ}$$.

A. $$ {23\over 12}$$
B. $$ {23\over 9}$$
C. $$ {23\over 11}$$
D. $$ {23\over 8}$$
Answer» B. $$ {23\over 9}$$


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