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sofidiachenko
@sofidiachenko
June 2023
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cos²22,5-cos²67,5
Розв'яжіть, якомога швидше
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rezrezd
cos²22,5-cos²67,5 = cos²67,5-cos²22,5 = -sin²45° = -1/2
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sofidiachenko
Дякую. Сподіваюсь, що це вірно
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