December 2021 1 15 Report

Вычислите:

1) cos 7230 градусов,
2) sin 900 градусов.
3) tg 585 градусов.
4) ctg 750 градусов.
5) sin 1843 градусов.

Упростите выражение:

sin^2 (6пи - альфа) + sin^2 (10пи + альфа)

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