ii_chet_9_klass_algebra_sor№_4_obsheobr_original_2_variant

klass _______ imya, familiya _________________________data _____ algebra 9 klass sor №4 2-variant 1. naydite radiannuyu meru ugla, virajennogo v gradusax. (6 ballov) a) 105° b) 200° c) 48° otvet: _______________________________________________ 2. vichislite radius okrujnosti, esli duga dlinoy 0,64 𝑚 styagivaet tsentralniy ugol v 0,4 𝑟𝑎𝑑 . (4 balla) otvet: _______________________________________________ 3. na edinichnoy okrujnosti otmette tochku, poluchennuyu povorotom tochki 𝑃(1; 0) na zadanniy ugol: (4 balla) a) 11𝜋 2 b) 9𝜋 otvet: _______________________________________________ 4. vichislite. (5 ballov) 2√3𝑠𝑖𝑛 5𝜋 3 + 2√3𝑡𝑔 𝜋 6 − 2√2𝑐𝑜𝑠 3𝜋 4 − 𝑐𝑡𝑔 3𝜋 6 otvet: _______________________________________________ 5. opredelite znak chisla. (6 ballov) a) 𝑠𝑖𝑛 2𝜋 3 ∙ 𝑐𝑡𝑔 3𝜋 4 b) 𝑐𝑜𝑠480° 𝑡𝑔 7𝜋 4 otve...

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