Verify the Given Identity $$\frac { \sin u + \sin v } { \cos u + \cos v } = \tan \frac { 1 } { 2 } ( u + v )$$

question 111

Essay

Verify the given identity.
$$\frac { \sin u + \sin v } { \cos u + \cos v } = \tan \frac { 1 } { 2 } ( u + v )$$

Describe the mechanism of Strecker synthesis for amino acid production.

Convert specific aldehydes to corresponding amino acids using organic synthesis methods.

Analyze the structure of amino acids and peptides after specific chemical treatments.

Use reagents for amino acid synthesis and modification.

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