Mathematics, 04.01.2021 17:10 carolin7493
Cos⁴(180/8)+Sin⁴(3×180/8)+cos⁴(5×18 0/8)+cos⁴(7×180/8)=3/2
Answers: 3
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Cos⁴(180/8)+Sin⁴(3×180/8)+cos⁴(5×18 0/8)+cos⁴(7×180/8)=3/2...
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