1.

The interval in which θ belongs, such that the inequality 2sin2(θ−π3)−sin(θ−π3)−1≤0 is satisfied and θ∈[−π,π] is

Answer»

The interval in which θ belongs, such that the inequality 2sin2(θπ3)sin(θπ3)10 is satisfied and θ[π,π] is



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