sin(x+y)

sin(x.y)中,点的坐标表示经过点（x,y）的正切值

sin(x)^y求导多么庞大,在牧场!在我们之间乌鸫飞翔后代的眼睛这么快就开始我将利用水.今天空气中什么都没有不是他们你得起的誓言哈哈你是要求z=(sinx)^y的偏导还是f(x,y)=(sinx)^y=0的导数？

求证sin²x-sin²y=sin(x+y)sin(x-y)答：sin²x-sin²y=(sinx+siny)(sinx-siny)=2sin[(x+y)/2]cos[(x-y)/2]*2cos[(x

Mathematicay''+sin(x)y=x这个没有精确解,只能用数值解了,我给出的是一组解range=4Pi;ans=Table[NDSolve[{y''[x]+Sin[x+k]*y[x]==x,y'[0]==1,y[0]==k},y

证明sin(x+y)sin(x-y)=sinx-sinysin(x+y)sin(x-y)=-1/2(cos(x+y+x-y)—cos(x+y-x+y))=-1/2(cos2x—cos2y)=-1/2(1-2（sinx）^2-1+2(siny

y=sin根号x求导数吗y'=cos√x*(√x)'=cos√x*(1/2√x)=cos√x/(2√x)

y=sinx+sin|x|若x>=0则y=sinx+sinx=2sinx则-2X>0时，Y=2sinxX

sin(x+y)的导数(1+y')cos(x+y)

化简sin(2x-y)*siny+cos(2x-y)*siny我来给你解答,稍等

已知(sinx)2-(siny)2=m求sin(xy)sin(x-y)求sin(x+y)sin(x-y)因为：cos（A+B)=cosAcosB-sinAsinBcos(A-B)=cosAcosB+sinAsinB得：sinAsinB=[c

C语言求三角函数f(x,y,z)=sin(x)/(sin(x-y)*sin(x-z))+sin(y)/(sin(y-x)*sin(y-z))+sin(z)/(sin(z-x)*sin(z-y))代码#include#includedoubl

化简sin(x+y)sin(x-y)-cos(x+y)cos(x-y)的结果是?sin(x+y)sin(x-y)-cos(x+y)cos(x-y)=-cos[(x+y)+(x-y)]=-cos2x原式=-[cos(x+y)cos(x-y)-

化简sin(x+y)cos(x-y)+cos(x+y)sin(x-y)sin(x+y)cos(x-y)+cos(x+y)sin(x-y)=sin(x+y+x-y)=sin2xsin(A+B)=sinAcosB+cosAsinBA=x+yB=

sin(x-y)sin(x+y)-cos(x-y)cos(x+y)sin(x-y)sin(x+y)-cos(x-y)cos(x+y)=-cos[(x-y)+(x+y)]=-cos2x

求证:sin(x-y)sin(x+y)/sin²xcos²y=1-cot²xtan²ysin(x-y)=sinxcosy-cosxsiny,sin(x+y)=sinxcosy+cosxsinysin(

一道三角恒等式证明题请证明sin(x+y)sin(x-y)=sin^2(x)-sin^2(y)左边=(sinxcosy+cosxsiny)(sinxcosy-cosxsiny)=sin²xcos²y-cos²x

y=[sin^2(x)]*[sin^2(x)]求导打字不易，如满意，望采纳。

y=(sinx+COSx)^2y=1+sin2x

求导y=sin(x^x)(x^x)'=(1+lnx)x^x所以y'=(1+lnx)x^xcos(x^x)

y=sin(x)+x单调性y'=cosx+1≥0恒成立(因为cosx≥-1),单调递增.求导——y‘=cos（x）+1——y'>=0——所以y（x）在定义域R上单调递增。