Question: Prove 1+ cos = sine @= 1-cos e Prove 1-cos 20+ sin 20 1+ cos 20+ sin 28 tan e

Prove 1+ cos = sine @= 1-cos e Prove 1-cos 20+ sin 

Prove 1+ cos = sine @= 1-cos e Prove 1-cos 20+ sin 20 1+ cos 20+ sin 28 tan e

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