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Тригонометриялық теңсіздіктерді шешу

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Осы сабақтың оқу мақсаты: 

 10.2.3.17 - қарапайым тригонометриялық теңсіздіктерді шеше алу; 

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Сіз не туралы бұрыннан білесіз

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Теңсіздікті шешіңіз: sin(x) > 0, мұндағы x ∈ [0; 2π].

1. [0; π]
2. (0; π)
3. . (0; π/2) ∪ (π; 3π/2)
4. (0; π)

Теңсіздікті шешіңіз: cos(x) ≤ 1/2, мұндағы x ∈ [0; 2π].

1. . [0; π/3] ∪ [5π/3; 2π]
2. [π/3; π] ∪ [5π/3; 2π]
3. [π/3; π]
4. (π/3; π) ∪ (π; 5π/3)

Теңсіздікті шешіңіз: cos(x) > 0, мұндағы x ∈ [0; 2π].

1. (0; π/2) ∪ (3π/2; 2π)
2. [0; π]
3. (0; π)
4. (π/2; 3π/2)

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