Question: Please step by step!! Including what formulas used !! Thank you! 178 , Chapter 6 MEAN-VARIANCE PORTFOLIO THEORY . 7. (Markowitz fan) There arejust three

Please step by step!!

Including what formulas used !!

Thank you!

178 , Chapter 6 MEAN-VARIANCE PORTFOLIO THEORY . 7. (Markowitz fan) There arejust three assets with rates ofreturn andry,respecti covariance matrix and the expected rates of return are 2 1 07 012 (a) Find the minimum-variance portfolio. [Hint: By symmetry wi = w3.] (b) Find another efficient portfolio by setting = 1, = 0. (c) If the risk-free rate is= .2, find the efficient portfolio of risky assets

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