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verunyaegorova
@verunyaegorova
July 2022
1
18
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Упростите выражение
2sin a\2 cos a\ 2 cos a
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Lesben
2.sinα/2.cosα/2.cosα=sinα.cosα=0,5.2.sinα.cosα=1/2.sin2α
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Formula: 2.sinx.cosx=sin2x
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Formula: 2.sinx.cosx=sin2x