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Prove that (1-cos^2 60)(1+cos^2 300)= 2sin^2 120- sin^4 60
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Prove that (1-cos^2 60)(1+cos^2 300)= 2sin^2 120- sin^4 60

User Mohanvel V
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9 votes
No no no no no no no no no
User Rodrigo Zurek
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