Thank you for active participation in class. Today we have covered the topics as below.
1. Recap of lesson 02 (Functions & Graphs + homeworks).
2. Dicussing Quiz 02 questions.
3. Properties of Circle.
4. Trigonometry.
Today some of the students were absent. Please attend the following class for make up.
E-Maths Lesson 03 Make up class: 23-Jun, 3.00pm
Venue: Shi Lin Learning Centre.
Today's homeworks:
E-Maths Course Reference Book
Pg 88: #10, #12
Pg 89: #13, #14, #15
Pg 133: #15, #17
Pg 134: #19
Pg 167: #03, #05
Pg 168: #08, #09
Pg 169: #10, #12
Trigonometry Quick Reference
Take Note:
For acute angle
sin a = opp/hyp
cos a = adj/hyp
tan a = opp/adj
For obtuse angle
sin (180 - a) = sin a
cos (180 - a) = -cos a
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