f(x)=2SIN^2(x+π\4)-cos(2x+π\6) 化简
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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(x+π/4)图像怎样变成F(x)=cos(2x)
函数f(x)=2sin(x+π/4)sin(x-π/4)+sin2x的值域
求f【x】=2sin[x+π/4]sin[x-π/4]+sin2x的最大值
证明∫( 0,π/2 ) (f sin x/(f sin x+f cos x) dx=π /4
若f(x)=sin(π/4)x,求f(1)+f(2)+.+f(2010)
函数f(x)=cos2x+cos(x+π/3)+sin(x+π/6)+3sin^2x的最小值A.0 B.2 C.9/4 D.3
求导f(x) = 4x^3 + sin(x^2)
已知f(x)=cos^2x/1+sin^2x求f'(π/4)求导
设f(x)=sin(x+4/π),则f(2x)=
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)=cos(2x-x/3)+2sin(x-π/4)sin(x+π/4)sin(x+π/4)化简.
如图是周期为2π的三角函数y=f(x)的图像,那么f(x)的解析式可以写成( )(A)f(x)=sin(1+x)(B)f(x)=-sin(1+x)(C)f(x)=sin(x-1)(D)f(x)=sin(1-x)对不起
图1.5-3是周期为2π的三角函数y=f(x)的图像,那么f(x)可以写成 A.f(x)=sin(1+x) B.f(X)=sin(-1-x) C.f(x)=sin(x-1)D.f(x)=sin(1-x)图
图1.5-3是周期为2π的三角函数y=f(x)的图像,那么f(x)可以写成A.f(x)=sin(1+x) B.f(X)=sin(-1-x) C.f(x)=sin(x-1)D.f(x)=sin(1-x)
f(x)=2sin^2(π/4+x)+根号3(sin^2x+cos^2x)f(x)=2sin^2(π/4+x)+根号3(sin^2x-cos^2x) 符号打错了
f(x)=(6sin^4x-7sin^2x+2)/(sin^2x-cos^2x)