Given E[X]=2E[X] = 2E[X]=2 and E[Y]=5E[Y] = 5E[Y]=5, and Cov(X,Y)=−1Cov(X, Y) = -1Cov(X,Y)=−1, find E[X2+Y2]E[X^2 + Y^2]E[X2+Y2] if Var(X)=1Var(X)=1Var(X)=1 and Var(Y)=2Var(Y)=2Var(Y)=2.
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