góc α = π/6, tan α = ?
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tính các giá trị lượng giác của góc alpha
- cho cos α = 0.5, sin α = ?
- tính cot(π - α)
- giải phương trình sin 2x = cos x tính các giá trị lượng giác của góc alpha
- cho tan α = -1, sin α = ?
- tìm giá trị của 1 + cot² α tại α = π/3 tính các giá trị lượng giác của góc alpha
- sin(2π - α) = ? tính các giá trị lượng giác của góc alpha
- góc α = 270°, sin α = ?
- cho cos α = 0.1, sin α = ?
- tính các giá trị lượng giác của góc α = 4π/3 tính các giá trị lượng giác của góc alpha
- cho csc α = -2/√3, sin α = ?
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