29th Feb 2008




Today we are learning to … change the subject of a formula.

The Cosine Rule: change a2 = b2 + c2 – 2bc cosA into a cosA = …. formula

Page184, Check-Up – ques. 3, 5, 7, 8, 9, 10, 11

Create a free edublog to get your own comment avatar (and more!)

Comments are closed.