March 18th, 2015

At the start of the class we looked at an alternative solution to the inequality question on the mock. This requires us to solve a degree 4 polynomial.

mock_inequality_question.pdf
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Trigonometry

We then introduced trigonometry considering both right angled 

• Pythagoras' Theorem
• Trigonometric Ratios (SOH, CAH, TOA)

and non-right angled triangles (see videos):

• Sine Rule
• Cosine Rule
• Area formula

Maths tables

t&t4_trigonometry_introduction_18-3-2015.pdf
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HW: Try questions from T&T4 2.2, 2.4 and 2.5

Area of a Triangle

Sine Rule

Cosine Rule