A letter to the editor is presented in response to the issue regarding how to find the exact values for the sine of angles that are multiples of 18° without using double or triple angle formulas.WenjiangOswegoTuOswegoMathematics Teacher
Ease of response – it is often easier for the respondent to simply check an option of ranges rather than enter an exact value into a text box. Respondent comfort – some respondents may not be comfortable providing exact numeric values, such as age or annual income or other health-related ...
Animals have evolved mechanisms to travel safely and efficiently within different habitats. On a journey in dense terrains animals avoid collisions and cross narrow passages while controlling an overall course. Multiple hypotheses target how animals solv
This is when ad hoc testing is needed. You use ad hoc testing to try and find ways to break your application. It is almost the exact opposite of the usual strictly planned and executed testing you are used to. Some people use the term “monkey testing” since ad hoc testing is like ...
Some qualitative data methods don’t signify the exact number of people surveyed, support extrapolating results, or fit when applied to a broader audience. Demands Manual Efforts Similar to other drawbacks, this one is also applicable to some qualitative research methods. Some methods require you to...
当进行精确值查找时, 我们会使用过滤器(filters)。过滤器很重要,因为它们执行速度非常快,不会计算相关度(直接跳过了整个评分阶段)而且很容易被缓存。我们会在本章后面的 过滤器缓存 中讨论过滤器的性能优势,不过现在只要记住:请尽可能多的使用过滤式查询。
term查询对于查找单个值非常有用,但通常我们可能想搜索多个值。如果我们想要查找价格字段值为 $20 或 $30 的文档该如何处理呢? 不需要使用多个term查询,我们只要用单个terms查询(注意末尾的s),terms查询好比是term查询的复数形式(以英语名词的单复数做比)。
Solve the trigonometric equation cos(x)(\sqrt2sin(x)+1) = 0 in the interval (0, 360^o ) Find the exact values of the solutions in degrees. Solve sin(2x) = 3 sin(x), finding all solutions in the interval [0,...
Fischer in the February 1995 issue of `Math Horizons,' which allows one to find exact values for a large class of infinite series of rational terms. Use of the monotone convergence theorem to derive the last result; Expression of the result in equivalent form using a representation of the ...
We will also assume that the resultant of f ( x ) and g ( x ) is nonzero in an algebraic closure of \\(F_p\\) . That is \\(ext {Re}\\,s(f,\\,g)=\\prod \\limits _{(\\alpha ,\\,\\beta ):f(\\alpha )=0ext { and } g(\\beta )=0}\\,(\\alpha -\\beta )...