用计算器求下列各三角边的值(1)sin80°(2)cos35°(3)tan70°(4)cot68°(5)tan23°21′(6)sin51°42′20″(7)cos13°12′9″(8)cot78°45′25″
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![用计算器求下列各三角边的值(1)sin80°(2)cos35°(3)tan70°(4)cot68°(5)tan23°21′(6)sin51°42′20″(7)cos13°12′9″(8)cot78°45′25″](/uploads/image/z/14157003-3-3.jpg?t=%E7%94%A8%E8%AE%A1%E7%AE%97%E5%99%A8%E6%B1%82%E4%B8%8B%E5%88%97%E5%90%84%E4%B8%89%E8%A7%92%E8%BE%B9%E7%9A%84%E5%80%BC%EF%BC%881%EF%BC%89sin80%C2%B0%EF%BC%882%EF%BC%89cos35%C2%B0%EF%BC%883%EF%BC%89tan70%C2%B0%EF%BC%884%EF%BC%89cot68%C2%B0%EF%BC%885%EF%BC%89tan23%C2%B021%E2%80%B2%EF%BC%886%EF%BC%89sin51%C2%B042%E2%80%B220%E2%80%B3%EF%BC%887%EF%BC%89cos13%C2%B012%E2%80%B29%E2%80%B3%EF%BC%888%EF%BC%89cot78%C2%B045%E2%80%B225%E2%80%B3)
用计算器求下列各三角边的值(1)sin80°(2)cos35°(3)tan70°(4)cot68°(5)tan23°21′(6)sin51°42′20″(7)cos13°12′9″(8)cot78°45′25″
用计算器求下列各三角边的值
(1)sin80°(2)cos35°(3)tan70°(4)cot68°(5)tan23°21′(6)sin51°42′20″(7)cos13°12′9″(8)cot78°45′25″
用计算器求下列各三角边的值(1)sin80°(2)cos35°(3)tan70°(4)cot68°(5)tan23°21′(6)sin51°42′20″(7)cos13°12′9″(8)cot78°45′25″
(1)sin80°=0.9848
(2)cos35°=0.8192
(3)tan70°=2.7475
(4)cot68°=0.4040
(5)tan23°21′=0.4317
(6)sin51°42′20″=0.7848
(7)cos13°12′9″=0.9736
(8)cot78°45′25″=0.1988