先求定义域,x+2》0,1-x》0,则-2《x《1.
两边平方,则:f(x)^2=(x+2)+1-x-2√(x+2)*(1-x)=3-2√-x^2-x+2=3-2√-(x+1/2)^2+1/4+2=3-2√-(x+1/2)^2+9/4,x=-/2是,最小是0.当x=1或-2是,最大值3.即f(x)^2得值域为[0,3]
f(x)的值域为[-√3,√3]
先求定义域,x+2》0,1-x》0,则-2《x《1.
两边平方,则:f(x)^2=(x+2)+1-x-2√(x+2)*(1-x)=3-2√-x^2-x+2=3-2√-(x+1/2)^2+1/4+2=3-2√-(x+1/2)^2+9/4,x=-/2是,最小是0.当x=1或-2是,最大值3.即f(x)^2得值域为[0,3]
f(x)的值域为[-√3,√3]