GCSE Maths Practice: trigonometry

Question 7 of 10

Find the exact sine value for 30°.

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\( \begin{array}{l}\text{What is the exact value of } \sin 30^\circ\text{?}\end{array} \)

Choose one option:

Memorize standard exact values for quick calculations.

Sine of 30° is exactly 1/2. Memorizing the exact values for 30°, 45°, and 60° for sine, cosine, and tangent is key for fast problem-solving in GCSE trigonometry. It helps in solving right-angled triangles quickly, verifying answers, and applying trig ratios to real-world problems.