1 . sin-145+cos-123

• A. ${\tan }^{-1}\frac{2}{11}$
• B. ${\tan }^{-1}\frac{32}{11}$
• C. ${\tan }^{-1}\frac{11}{2}$
• D. $-{\tan }^{-1}\frac{2}{11}$

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Answer: Option C

Explanation: