Challenge Questions ? ? ? Trigonometric Identities

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Challenge Questions ? ? ? Trigonometric Identities

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Challenge Questions ? ? ? Trigonometric Identities Trigonometric Identities ? ? ? ? ? ? ? Trigonometric Identities 1 1 2 What do we get if we use Pythagoras Theorem? ? ? ? Using basic trigonometry to find these two missing sides These

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Challenge Questions ? ? ?

Trigonometric Identities

Trigonometric Identities ? ? ? ? ? ? ?

Trigonometric Identities 1  1 2 What do we get if we use Pythagoras’ Theorem? ? ? ? Using basic trigonometry to find these two missing sides… These two identities are all you will need for Further Maths. ?

Solving Harder Trig Equations The problem here is that we have two different trig functions. Is there anything we could divide by to get just one trig function? ? ? ? Tip: In general, when you have a mixture of sin and cos, divide everything by cos.

? ? ? ? ? ? ? ?

Test Your Understanding ? ?

Solving Harder Trig Equations This looks a bit like a quadratic. What would be our usual strategy to solve it? ? ? ? June 2013 Paper 2 Q22

More Examples ?

Test Your Understanding ? ?

1 2 ? ? ? ? ? ? ? ? ? ? ? 3 4 N a b a b c a b c a b

Proof ? ? ? ?

Proof June 2012 Paper 1 Q16 Top Tip: Whenever you have a fraction in a proof question, always add the fractions. ? ? ? ?

Test Your Understanding AQA Worksheet ? ?

? ? ? ? 1 2 3

Using triangles to change between Sine, Cosine and Tangent ? ?
Represent as a triangle ? ? Test Your Understanding ? ? ? ? 1 2

Challenge Questions ? ? ? Trigonometric Identities

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