f(x)=2sin^2x 3cos x 1的值域f(x)=2sin^2x+3cos x+1的值域
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f(x)=2sin^2x3cosx1的值域f(x)=2sin^2x+3cosx+1的值域f(x)=2sin^2x3cosx1的值域f(x)=2sin^2x+3cosx+1的值域f(x)=2sin^2x
f(x)=2sin^2x 3cos x 1的值域f(x)=2sin^2x+3cos x+1的值域
f(x)=2sin^2x 3cos x 1的值域
f(x)=2sin^2x+3cos x+1的值域
f(x)=2sin^2x 3cos x 1的值域f(x)=2sin^2x+3cos x+1的值域
f(x)=2sin^2x+3cos x+1
=-2(cosx-3/4)^2+33/8
f(x)=2sin^2x+3cos x+1的值域是[-2,33/8]