已知函数f(x)=-2asin(2x+π/6)+a+b(x∈R),它的值域为[-2,6】,求常数a,b的值.详细过程谢谢.

已知函数f(x)=Asin(ωx+a)(A>0,ω>0,-π/2 已知函数f(x)=Asin(ωx+φ)(A>0,ω>0,-π/2 已知函数f(x)=更号2asin(x-π/4)+a+b 当a 已知函数f(x)=Asin 已知函数f(x)=Asin(2x+φ) (A>0,0已知函数f(x)=Asin(2x+φ) (A>0,0 已知函数f(x)=Asin(2x+a),若函数f(x+π/6)为偶函数,且f(π/6)=4,求f(x)解析式 已知函数f(x)=Asin(wx+φ)(其中A>0,w>0,-π/2 已知函数f(x)=Asin(wx+α)(A>0,w>0,-π/2 已知函数f(x)=Asin(wx+a)(A>0,w>0,-π/2 已知函数f(x)=Asin(wx+α)(A>0,w>0,-π/2 已知函数f(x)=Asin(2wx+π/3)+m(A>0,w 已知函数f(x)=Asin(2wx+π/3)+m(A>0,w 已知函数f(x)=Asin(2ωx+φ)(x∈R,ω>0,0 已知a＞0,函数f（x）=-2asin（2x+ π 6已知函数a>0,函数f(x)=-2asin(2x+π/6)+2a+b,当x∈[0,π/2]时,-5 已知函数f（x）=Asin（2x+φ）,当x=-π/3时,最小值为-4, 急用::已知函数f(x)=Asin^2(ωx+φ)(A>0,0 已知函数f(x)=Asin(2x+φ) (A>0,0 已知函数f(x)=Asin(2x+b)(A>0,0