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16〖cos〗^5 A+2cosA-cos3A-cos5A=16 〖cos〗^3 A
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16〖cos〗^5 A+2cosA-cos3A-cos5A=16 〖cos〗^3 A
16〖cos〗^5 A+2cosA-cos3A-cos5A=16 〖cos〗^3 A
