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brisafe2023
18.12.2020 •
Mathematics
Which expression is equivalent to 3cos2(StartFraction theta Over 2 EndFraction) minus 3?
Three-halves(cos(ϴ) – 1)
Three-halves(cos(ϴ) – 5)
3(cos(ϴ) + 2)
3(cos(ϴ) + 1)
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Ответ:
I think it's A for the first one and B in the second.
Step-by-step explanation:
I'm not sure.