Given the following Cobb Douglas utility function U(X1,X2)=(Xa1,x1-a 2) derive the marginal utilities for good X1 and good x to derive the marginal rate of substitution

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Given the following Cobb Douglas utility function U(X1,X2)=(Xa1,x1-a 2) derive the marginal utilities for good X1 and good x to derive the marginal rate of substitution

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