Monday 29 July 2013

summary for July 30 's lesson

TRIGO













1.Definition of trigonometry, identify tan, cot, sin, cos, cosec, sec in a given triangle.



2.Unit circle and "CAST" rule , memorize the symbol and values of trigonometry in different angles.


3.Different trigonometry rules: sine rule, cosine rule, area formula, special relationship  and how to transfer in different  trigo values.


4.Memorize values of special angles.

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