20150308 (Sun)-Sec4 by Gary Ang | Mar 8, 2015 | Board-casts | 0 comments[vimeography id="68"]3Revised AM maximum/minimum problem, Intro to derivatives of trigo ratios, challenging questions.Submit a Comment Cancel replyYour email address will not be published. Required fields are marked *Comment *Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ