【解析】 1、 按MODE,出现 : DEG ,按tan,80=,显示:5,671; 2、 按MODE,出现:DEG ,按cos,25=,显示:0.9659 ; 3、 MODE,出现:DEG ,按tan,15,“ .” ,1 5,“ .” ,=,显示:0,2720 4,按MODE ,出现:DEG ,按sin,50,“ .” ,2 6,” ."18,=,显示:0.7708; 故答案为: (l)5,671;...
sin155°cos35°-cos25°cos235°=sin25°cos35°+cos25°cos55°=sin25°cos35°+cos25°sin35°=sin(25°+35°)=sin60°= 3 2.故答案为 3 2. 解析看不懂?免费查看同类题视频解析查看解答 特别推荐 热点考点 2022年高考真题试卷汇总 2022年高中期中试卷汇总 2022年高中期末试卷汇总 2022年高中月...
1. **角度模式的确认**:所有计算需在角度模式(DEG)下进行。 2. **具体计算过程**: - **(1) sin47°**:输入角度47°,按“sin”键,结果为0.731353。 - **(2) sin12°30′**:将30′转换为0.5°,即12.5°,计算结果为0.216440。 - **(3) cos25°18′**:将18′转换为0.3°,即25.3°...
sin65°cos35°-sin25°sin35°=cos25°cos35°-sin25°sin35°=cos(25°+35°)=cos60°= 1 2,故答案为: 1 2. 由条件利用诱导公式、两角而和的余弦公式,求得所给式子的值. 本题考点:两角和与差的正弦函数 考点点评: 本题主要考查诱导公式、两角而和的余弦公式的应用,属于基础题. 解析看不懂?免...
The kinetics of the reactions of H atoms with H2S and with COS were measured at 298deg;K in a flow system using mass-spectrometric detection. The rate constants were found to be 3.8 × 1013 and 2.2 × 1014 cm3 part1 sec1, respectively, with an estimated accuracy of 25%. At high ...
使用计算器进行计算时:在计算器显示DEG状态下,依次按键cs025+350=,结果显示为___.【分析】DEG是角度制,显示的是cos(25°+35°)的值,求得cos60°=12,即可求得.【解答】解;在计算器显示DEG状态下,依次按键cs025+350=,结果显示的是cos60°的值.∵cos60°=12,∴结果显示为0.5.故答案为0.5.【点评】本...
(25deg)); height: calc(70px * cos(25deg)); margin: calc(40px * cos(25deg)); transform: rotate(25deg); transform-origin: center; background-color: pink; } 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30目录可能...
百度试题 结果1 题目使用计算器进行计算时:在计算器显示DEG状态下,依次按键cos(25+35),结果显示为 coS2535= 相关知识点: 试题来源: 解析 0.5 反馈 收藏
Degraeuwe, F.H.M. Nieman, M.C. De Wolf, A. De Boer Population pharmacokinetics and relationship between demographic and clinical variables and pharmacokinetics of gentamicin in neonates 24 (2002), pp. 527-531 View in ScopusGoogle Scholar 38 Intravenous aminoglycoside therapy (amikacin, gentamicin...
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