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Mathematics, 31.08.2021 08:40 nae9587

1. Sin 2x= cos (x+15°), for 0°≤ x ≤ 360°

2. Tan (x +10°) = cot 3x for
0°≤ x ≤ 180°

3. Cos x - 2cos²x = 0 for
0° ≤ x ≤ 360°

4. Tan²x - 2tan x - 3 = 0 for
0°≤ x ≤360°​

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You know the right answer?
1. Sin 2x= cos (x+15°), for 0°≤ x ≤ 360°

2. Tan (x +10°) = cot 3x for
0°≤ x ≤ 180°...

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