简化三角函数!Simplify the expression.cos(2 tan^−1 (x))

简化三角函数!Simplify the expression.cos(2 tan^−1 (x)) 写一个代数表达式,包括三个系数,双,和一个常数项.简化表达式.原文：Write an algebraic expression that includes three coefficients,two like terms,and one constant term.Then simplify the expression. 怎么利用复数简化三角函数运算 matlab 计算结果如何最简化?z =[5408814226588255/2251799813685248,5405409749216593/2251799813685248,5399735620263823/2251799813685248,2695895919864973/1125899906842624,336348650475935/140737488355328]其中已经用过simple()和simplify（） 三角函数怎么简化?如图16题,看不懂第一小题怎么简化的 (简化 ( matlab的简化函数simple为什么我使用simple或者simplify简化后g2 =((2*x + 1)^3/x^3)^(1/3),而不是g2=(2*x+1)/x 或者g2=2+1/x simplify our love Simplify Chinese是什么意思 differentiate the following functions and simplify and factorizeg(x)=(x+1)的八次方 * E的X次方 simplify 3/5x-2/7x,then solve the equation 3/5x-2/7x=2/5 并化解该式至最简(simplify the expression),并列明过程.1) 15x ÷ 3 ÷ 5x -3 thanks! 不等式与三角函数我在研究一个问题,最终将问题简化成如下：0 同角三角函数化简化简：tana +(cosa/1+sina)=? 简化三角函数:csc(x)/sin(x)-(cot(x)csc(x))/sec(x) 简化三角函数化简4cosα^2/(cot(α/2)-tan(α/2)) 英语翻译原句：Thailand needs to simplify its migrant worker policy and enact laws that better protect the workers the country depends on. Use long division and partial fractions to simplify the rational function(x^4+x^3−x^2−x+1) / (x^3−x)