解cos(π/4-3x)≤根号3/2

解cos(π/4-3x)≤根号3/2 根号2cos(x-π/4)化简 化简 根号3sinXcosX+cos*2X 化简2sin^2[(π/4)+x]+根号3（sin^x-cos^x）-1 函数f(x)=2cos(2x+5/2π)+3cos(4π+2x)的值域 是﹣根号13,根号13吗? cosx+根号3sinx=2cos(x-π/3) 解cos(5x+pai/3)=(根号3)/2 解三角方程：2根号3cos^2x=sinx 解cos(5x+pai/6)=(根号3)/2 化简根号2sin(π/3-x)+根号6cos(π/3-x) 4cos^a-2(1+根号3)cos+根号3=0怎么解 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 希望有人愿意帮忙)函数f(x)=sin2x+2根号(2)cos()函数f(x)=sin2x+2根号(2)cos(π/4+x) + 3 的最小值是 _________. ------------------------------------------------------------------------------------解:f(x)=sin2x+2根号(2)cos(π/4+x) f(x)=2sinπ/4cosπ/4- 2根号3sin^2π/4+根号3 f(x)=2sinπ/4cosπ/4-2根号3sin^2π/4+根号3 化简 1/2cos x-根号3/2sin x 根3sin x+cos x 解cos（3x-π／3）﹥根号2/2不等式 求定积分∫(π/2,-π/2) 根号cos^x-cos^4x dx∫(π/2,-π/2) 根号cos^2x-cos^4x dx