Learn how to solve trigonometric equations without the use of a calculator

Key Points

To solve a trigonometric equation without a calculator use exact values

Learn the exact values for Sin, Cos & Tan for 0, 30, 45, 60 & 90 degrees

The ‘trig triangles’ can help you work out the exact values

Trigonometric equations also require the use of the CAST diagram

Learn more about our TRIGONOMETRIC EQUATIONS course here

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