I need the Cost of Equity using both the CAPM and Dividend Growth Models, along with all calculations, for company Lam Research Corporation (LRCX). I've gotten this answer for the CAPM, but I'm not sure if it's right, and I'm getting stuck on the DGM. Thank you in advance for any help!

Cost of Equity=Risk-Free Rate of Return + Beta *Market Premium

Risk-Free Rate (as of 10/26/17) 2.34% Beta 1.78 Market Premium (rm - rf) 6%

Total Cost of Equity = 11%