👉 Learn how to evaluate trigonometric functions using trigonometric identities. Trigonometric identities are equalities that involve trigonometric functions. We will focus on the cofunction ...
A GCSE Maths video about finding exact trigonometric values. This video explains the exact values of sinθ, cosθ and tanθ for 0°, 30°, 45°, 60° and 90° and shows how they can also be worked out using a ...
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