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durachek79
@durachek79
July 2022
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Математика (50 баллов)
Найдите значение выражения:
1. -4√3cos(-750°)
2. -17√3tg(1050°)
3. -18√2sin(-135°)
—————————-
4. Найдите 3cos α, если sin α = -(2√2/3) и α ∈(3п/2;2п)
5.Найдите tg α, если cos α = 1/√10 и α ∈ (3п/2;2п)
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inkarok0810
-18sqrt2sin(-135)=-18sqrt2×-sqrt2/2=18
1 votes
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Answers & Comments
-18sqrt2sin(-135)=-18sqrt2×-sqrt2/2=18