Some exact trigonometric values are equivalent. For example, \( \frac{1}{√2}\) = \( \frac{√2}{2}\). The denominator has been rationalised. To be successful with exact trigonometric values, especially ...

This lesson teaches students the exact trig values for the sin cos and tan of 30, 45, 60 and 90 degrees. The lesson shows two ways to remember the values by either table or triangles. The lesson is ...

Made for Year 10 to practise/prepare for (parts of) exam questions involving several topics/concepts. Pupils need to know exact trig values but also how to then calculate with other surds too in some ...