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C3 Trigonometry - Trigonometric equations - Physics & Maths Tutor

cot 2x = 1? tan 2x = 1 ? 2x = 45,. 225. ? x = 22.5, 112.5. Overall, x = {22.5, 45, 112.5, 135}. Both x = 22.5 and x = 112.5. A1. Both x = 45 and x = 135.



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