List

Tricky Trigonometry

You may think you have a pretty good grasp of the basics of trigonometry... These CMEP resources invite you to look a little more closely at the familiar trig functions and learn some interesting new ideas.
Equation or identity (1)
problem

Equation or identity (1)

Age
16 to 18
Challenge level
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Which of these equations concerning the angles of triangles are always true?
Equation or identity (2)
problem

Equation or identity (2)

Age
16 to 18
Challenge level
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Here are some more triangle equations. Which are always true?
Have a sine
problem

Have a sine

Age
16 to 18
Challenge level
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There's much more to trigonometry than sin, cos and tan...