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How can I colour the two regions inside the triangle upper and down the parabola plotted together but with different intervals of the variables? The input text I wrote in Mathematica is

Show[
 Plot[{1/3 - 2/3 γ}, {γ, 0, 1/2}, AxesLabel -> {γ, λ}, PlotStyle -> CMYKColor[0, 0, 0, 1]],
 Plot[γ^2, {γ, 0, 1/3}, AxesLabel -> {γ, λ}, PlotStyle -> CMYKColor[0, 0, 0, 1]]] 
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Plot[{1/3 - 2/3 γ, Min[1/3 - 2/3 γ, γ^2]}, {γ, 0, 1/2}, 
    AxesLabel -> {γ, λ}, PlotStyle -> Black, 
    Filling -> {1 -> {{2}, Yellow}, 2 -> {Axis, Red}}]

Mathematica graphics

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  • $\begingroup$ Thank you so much for your answer $\endgroup$
    – Michaels
    Apr 22, 2017 at 16:38
  • $\begingroup$ @Michaels, my pleasure. Welcome to mma.se. $\endgroup$
    – kglr
    Apr 22, 2017 at 19:21

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