y=(3/2)cos(1/2x-π/6)X∈R的周期 ,
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y=(3/2)cos(1/2x-π/6)X∈R的周期,y=(3/2)cos(1/2x-π/6)X∈R的周期,y=(3/2)cos(1/2x-π/6)X∈R的周期,在函数y=(3/2)cos(1/2x-
y=(3/2)cos(1/2x-π/6)X∈R的周期 ,
y=(3/2)cos(1/2x-π/6)X∈R的周期 ,
y=(3/2)cos(1/2x-π/6)X∈R的周期 ,
在函数y = (3/2)cos(1/2 x -π/6)中,ω = 1/2
所以周期T = 2π/2 = 2π/(1/2) = 4π
y=cos(π/3-x)cos[π/2(x-1)]判断奇偶性y=cos(π/3-x)cos(π/3+x)判断奇偶性
Sin x-sin y=2/3 cos x-cos y=1/2 求cos(x-y)
y=(cos x-2)/(cos x-1)的值域
函数y=2cos(x-π/3)(π/6
y=3cos(2x-π/6)单调区间
【高中数学】已知cos(x+y)=1/3,cos(x-y)=2/3,且0
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y=cos^2 x-cos x +1的值域y=cos^2 x+cos x +1的值域,
y=3cos(2x+π/4) (2)y=2cos(x-π/6)的单调区间
y=(3/2)cos(1/2x-π/6)X∈R的周期 ,
求y=-3/2cos(1/2x-π/6)取得最值时x的范围.
y=-3/2cos(1/2x-π/6),x∈R的单调区间
1.y=sin(-X+π/6)2.y=cos(-2X+π/3)
cos(x-y/2)=-1/9,sin(x/2-y)=2/3,π/2
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