f(X)=2sin(2x-(1/6)pai)沿向量C平移得到y=2sin2x,求向量C

亲爱的网友：f（x）=2-（x分之3）limx*sin(1/x) ∩｛P丨PA=PC}(a-b)/sin(a-b) 跪求f（x）=2-（x分之3）limx*sin(1/x) ∩｛P丨PA=PC}(a-b)/sin(a-b) 若f(x)=sin πx/6,则f(1)+f(2)+...+f(102)=? 请问：f（x）=2-（x分之3）limx*sin(1/x) AD=AB BD=AB BC/2∩｛P丨PA=PC} f(sin 2/x )=1+cosx 求f(x) 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 f(x)=(6sin^4x-7sin^2x+2)/(sin^2x-cos^2x) f(sin^2x)=x/sinx 求f(x) f(x)={(1-e^x)/sin(x/2) ,x>0 ;ae^2x,x 设函数f(x)=sinπ/6（x),则f(1)+f(2)+f(3)+…f(2008)=? 设函数f(x)=sinπ/6（x),则f(1)+f(2)+f(3)+…f(2008)=? f(x)=（1+cotx)sin^2x-2sin(x+π/4)sin(x-π/4)还有一题, 已知函数f(x)=(1+1 anx)sin^2x+m sin(x+π/4)sin(x-π/4) f(x)=sin(2x+π/6)怎么求导 f(x)=sin^2x+sinxcosx-1/2,化简 f(x)=(1+1/tanx)sin(x)^2化简 化简f(x)=(1+cos2x)sin^2x f(x)=sin(πx^2)(-1