Pure Maths EQ - Modelling with Trigonometry, Rsin and Rcos, Equivalent Forms

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In this video I cover an exam question on modelling with trigonometry, Rsin, Rcos and equivalent forms.

Topics include:

1. Trigonometry - equivalent forms
2. Modelling with trigonometry
3. Maximum and minimum of trigonometric functions
4. Rates of change

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Last minute tip for anyone who doesn't know, if you press the button under the square root symbol on your calculator it converts your answer into hours minutes and seconds :)

charliemccarthy
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you are the best a level maths teacher i have ever come across

nahsee-zqvg
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Zeeshan thank you so much i watched and did all the questiins in your a level pure maths videos and paper 1 went so well for me. You were definitley the reason why so thanks

Hadron
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dosen't the minimum value occur when cosx= 1 and not -1

sohail