sin(x)=x-x^3/3!+x^5/5!-x^7/7!+...,直到最后一项的绝对值小于10的负七次方为止.用C语言编程

2sin^2x - 5sin x cos x=3 cos^2x,求X, S (sin 5x) (sin 3x) dx = lim x->0 (sin x-tan x)/sin (x^3) s = 2*sin(x)-sin(2*x)+2/3*sin(3*x)-1/2*sin(4*x)+2/5*sin(5*x)用matlab画图,求教啊 傅里叶级数作图f（x）=2sin[x] - sin[2x] + 2/3sin[3x] - 1/2sin[4x]我用mathematica输入程序Plot[{2sin[x],-2sin[x],2sin[x] - sin[2x],-2sin[x] + sin[2x],2sin[x] - sin[2x] + 2/3sin[3x],-2sin[x] + sin[2x] - 2/3sin[3x],2sin[x] - sin[2x] + 2/3si 已知sin(x)+3cos(x)=2,求sin(x)-cos(x)/sin(x)+cos(x)=? 求极限 （（sin(x^3+x^2-x)+sin x) /x x→0 已知lim sinx/x=1 函数f(x)=3sin(x+10度)+5sin(x+70度)的最大值 函数f(x)=3sin(x-20)+5sin(x+40) f(x)=3sin(x-20°)+5sin(x+40°)的最大值 急,matlab解非线性方程组用什么函数呢 方程如下所示：(cos(x(1))*cos(x(3))-sin(x(1))*cos(x(2))*sin(x(3)))*(194-x(4))*x(7)+(cos(x(1))*sin(x(3))+sin(x(1))*cos(x(2))*cos(x(3)))*(145-x(5))*x(7)+sin(x(1))*sin(x(2))*x(6)*x(7)-1=0;(-sin(x(1 如果f(cos x)=sin 3x,那么f(sin x)等于A.sin 3x B.-sin 3x Ccos 3x D-cos 3x ①y=x^3-x/sin∏x； 求导f(x) = 4x^3 + sin(x^2) matlab 画图y=20.*sin(x)+x.^3+x+1 x=-5:0.1:5; 求不定积分【sin(x)^5 + sin(x)^3】^(1/2) 求∫√(sin^3x-sin^5x)dx 1/cos(x) - tan(x) = 3 求sin(x)1/cos(x) - tan(x) = 3求sin(x)