16S3: Surds lesson 1-Rationalisation by Gary Ang | Feb 29, 2016 | 16S3, Board-casts | 0 comments [vimeography id="418"] We started on the chapter on surds in this lesson. We went through up to rationalisation. Submit a Comment Cancel replyYour email address will not be published.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