Please answer each of the following questions in detail and provide in-text citations in support of your argument. Include examples whenever applicable. Make sure to provide examples for each of the questions below.
1. Please explain the risk vs. expected rate of return tradeoff, the security market line, and determination of beta on this basis. Include explanation of all the constituents namely, security market line, risk measure, expected rate of return, risk-free rate of return, and market rate of return. Include hypothetical examples for better clarity.
2. Explain the weighted average cost of capital (WACC) and its significance and include hypothetical examples for better clarity.
 

must cited:  Ross, S. A., Westerfield, R. W., & Jordan, R. D. (2018). Fundamentals of corporate finance (12th ed.). McGraw-Hill