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Stenzor
@Stenzor
August 2022
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Помогите с геометрией пж! Вычислить: a) 0.5 cos 60 - 2tg45 б) 2sin45 - tg30
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Verified answer
0.5 cos 60 - 2tg45=0,5*1/2-2*1=1/4-2=-7/4
2sin45 - tg30=2*
√2/2-√3/3=√2-√3/3
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Verified answer
0.5 cos 60 - 2tg45=0,5*1/2-2*1=1/4-2=-7/42sin45 - tg30=2*√2/2-√3/3=√2-√3/3