函数f(x)=二分之根号三
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f(x)=cosx/2(sinx/2+√3cosx/2)-√3/2=sinx/2cosx/2+√3cos²x/2-√3/2=1/2sinx+√3/2(1+cosx)-√3/2=sinxcos
f(x)=√3/2cosx+1/2sinx+1=sin(x+π/3)+1.值域为[0,2]sin(c+π/3)=4/5,因为派/6
f(x)=(√3/2)sinx+(1/2)cosx+1=sin(x+π/6)+1单调减区间为2kπ+π/2≤x+π/6≤2kπ+3π/2化简得:2kπ+π/3≤x≤2kπ+4π/3,即单调减区间为[2
派再问:求过程再答:再答:给好评再问:三角形3边ABC满足B^2=AC求f(B的取值范围。。)再答:先给好评,立马帮你解决再答:应该是abc吧?再问:嗯。再问:?
你问的是不是y=x-根号(x+3)/2中x的自变量范围?如果是的话就是根号下的多项式是大于等于零的即x+3>=0所以x的自变量范围就是x>=-3!
f(x)=√3cos²0.5x+sin0.5xcos0.5x=√3/2(cosx+1)+1/2sinx=sin(60°+x)+√3/2若f(x)=3/5+√3/2,即sin(60°+x)+√
f(x)=√3(cos(x/2))^2+sin(x/2)cos(x/2)=(√3/2)(cosx+1)+(1/2)sinx=sin(π/6+x)+√3/2f(x)=3/5+√3/2sin(π/6+x)
sinxcosx=1/2sin2xcos²x=1/2(1+cos2x)所以原式=1/2sin2x+√3/2(1+cos2x)-√3/2=1/2sin2x+√3/2cos2x=sin(2x+6
f(x)=√3sin^2x+sinxcosx-(√3/2)(x∈R)=√3*[(1-cos2x)/2]+(1/2)sin2x-(√3/2)=(√3/2)-(√3/2)cos2x+(1/2)sin2x-
(1)由f(x)=cosx+根号3cos(x+二分之兀)化简得:f(X)=-2sin(x-π/6)要f(X)有最大值,则sin(x-π/6)=-1故:X-π/6=-π/2+2Kπ,K∈Z得出X=-π/
f(x)=√3/2sin2x-3/2cos2x=√3(1/2sin2x-√3/2cos2x)=√3sin(2x-π/3)f(x)最小正周期T=2π/2=π由2kπ-π/2≤2x-π/3≤2kπ+π/2
f(x)=根号3cos^x+sinxcosx-根号3/2=根号3*(1+cos2x)/2+sin2x/2-根号3/2所以f(派/8)=根号3*(1+cos派/4)/2+sin(派/4)/2-根号3/2
先化简:f(x)=√3/2sin2x-cos²x-1/2=√3/2sin2x-(1+cos2x)/2-1/2=√3/2sin2x-1/2cos2x-1=sin(2x-π/6)-1,∵f(C)
(1)cos²x=1/2(1+cos2x),sinxcosx=1/2sin2x∴f(x)=1/4(1+cos2x)+√3/4sin2x+1=1/4cos2x+√3/4sin2x+5/4=1/
答:手机提问无法在电脑中显示平方f(x)=√3/2-√3(sinwx)^2-sinwxcoswxf(x)=√3/2*[1-2(sinωx)^2]-(1/2)*2sinωxcosωxf(x)=(√3/2
f(x)=√3/2-√3sin²ωx-sinωxcosωx=√3/2(1-2sin²ωx)-1/2*2sinωxcosωx=√3/2*cos2wx-1/2sin2wx=cos2wx
(1)f=(2x+π/3)+3根号3/2正周期T=2π/2=π对称轴2x+π/3=π/2+2kπ∴2x=π/6+2kπ∴x=π/12+kπ,k∈z(2)∵-π/2+2kπ≤2x+π/3≤π/2+2kπ
f(x)=2sinx/2cosx/2√3cosx=sin(x/2x/2)√3cosx=sinx√3cosx=√(1^2√3^2)sin(xπ/3)=2sin(xπ/3)函数f(x)的最小正周期T=2π
f(x)=1/2*sinxcosx+√3/2*(sinx)^2=1/4*sin(2x)+√3/2*[1-cos(2x)]/2=1/4*sin(2x)-√3/4*cos(2x)+√3/4=1/2*[1/