Geometry

Question Analysis  

The main focus is using the co-function identity to relate  and  as complementary angles.  

 

Key Concept Explanation  

Co-function identity: .

 

Step-by-Step Solution  

1. Identify the complementary angle relationship:  

.  

2. Apply the co-function identity:  

 

3. Substitute :  

 

Option Analysis  

: Correct (direct application of the co-function identity).  

: Incorrect (reciprocals are unrelated to co-function identities).  

: Incorrect (no algebraic relation justifies this).  

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