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Тригонометрические уравнения и неравенства

Authored by Kombazamen Kombazamen

Mathematics

10th Grade

Used 4+ times

Тригонометрические уравнения и неравенства
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10 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Решите уравнение: sin(x) = 0.5 в интервале от 0 до 2π.

π/4, 3π/4

2π/3, 4π/3

π/6, 5π/6

π/3, 2π/3

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Найдите все решения уравнения: cos(2x) = sin(x) в интервале от 0 до 2π.

x = 3π/2, π/6

x = 2π/3, 4π/3

x = 5π/4, 7π/6

x = π/4, 5π/6

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Решите неравенство: 2cos(x) > √3 в интервале от 0 до π.

0 < x < π/3 or 4π/3 < x < 2π

0 < x < π/2 or 3π/2 < x < 2π

0 < x < π/6 or 11π/6 < x < 2π

0 < x < π/4 or 5π/4 < x < 2π

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Используя обратные тригонометрические функции, найдите все решения уравнения: arccos(x) = π/4.

x = tan(π/4) = 1

x = sin(π/4) = √2/2

x = cos(π/4) = √2/2

x = sec(π/4) = √2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Решите уравнение: sin2(x) - sin(x) + 1 = 0 в интервале от 0 до 2π.

x = 2π/3, 4π/3

x = π/3, 5π/3

x = π/2, 3π/2

x = π/4, 3π/4

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Используя тригонометрические идентичности, найдите все решения уравнения: tan(x) + cot(x) = 2 в интервале от 0 до π.

No solution

Two solutions

Infinite solutions

One solution

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Решите неравенство: 4cos(2x) ≤ 3 в интервале от 0 до π.

x ≤ π/6 or x ≥ π/2

x ≤ 0 or x ≥ π

0 ≤ x ≤ π/3 or 2π/3 ≤ x ≤ π

x ≤ π/4 or x ≥ π/2

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