Простейшие тригонометрические уравнения и неравенства

Простейшие тригонометрические уравнения и неравенства

10th Grade

10 Qs

quiz-placeholder

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Простейшие тригонометрические уравнения и неравенства

Простейшие тригонометрические уравнения и неравенства

Assessment

Quiz

Mathematics

10th Grade

Hard

Created by

Жанна Леонидовна Мурзина

Used 16+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Укажите корни уравнения

 sin2x=1\sin2x=1  

 π+4πn\pi+4\pi n  

 π4+πn\frac{\pi}{4}+\pi n  

 π2+2πn\frac{\pi}{2}+2\pi n  

 π4+πn2\frac{\pi}{4}+\frac{\pi n}{2}  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Укажите корни уравнения

 cos(x4)=0\cos\left(\frac{x}{4}\right)=0  

 2π+2πn-2\pi+2\pi n  

 π8+πn4\frac{\pi}{8}+\frac{\pi n}{4}  

 2π+4πn2\pi+4\pi n  

 π2+πn\frac{\pi}{2}+\pi n  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Укажите корни уравнения

 tg(xπ3)=3tg\left(x-\frac{\pi}{3}\right)=\sqrt{3}  

 2π3+πn\frac{2\pi}{3}+\pi n  

 0+πn0+\pi n  

 2π3+2πn\frac{2\pi}{3}+2\pi n  

 π3+πn-\frac{\pi}{3}+\pi n  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Укажите корни уравнения

 ctg(x)=1\operatorname{ctg}\left(-x\right)=1  

 π4+πn-\frac{\pi}{4}+\pi n  

 3π4+πn\frac{3\pi}{4}+\pi n  

 3π4+2πn\frac{3\pi}{4}+2\pi n  

 3π4+πn-\frac{3\pi}{4}+\pi n  

5.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Укажите те корни, которые входят в множество 

 2π3+πk-\frac{2\pi}{3}+\pi k  

 π3\frac{\pi}{3}  

 7π3\frac{7\pi}{3}  

 π3-\frac{\pi}{3}  

 5π3\frac{5\pi}{3}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Укажите формулы корней уравнения

 cosx=0.5\cos x=-0.5  

 x=±π3+2πnx=\pm\frac{\pi}{3}+2\pi n  

 x=±2π3+πnx=\pm\frac{2\pi}{3}+\pi n  

 x=±5π6+2πnx=\pm\frac{5\pi}{6}+2\pi n  

 x=±2π3+2πnx=\pm\frac{2\pi}{3}+2\pi n  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Укажите формулы корней уравнения

 sin3x=32\sin3x=-\frac{\sqrt{3}}{2}  

 x1=2π9+2πn3;  x2=π9+2πk3x_1=-\frac{2\pi}{9}+\frac{2\pi n}{3};\ \ x_2=-\frac{\pi}{9}+\frac{2\pi k}{3}  

 x1=5π18+2πn;   x2=π18+2πkx_1=-\frac{5\pi}{18}+2\pi n;\ \ \ x_2=-\frac{\pi}{18}+2\pi k  

 x1=π9+2πn3;   x2=π9+2πk3x_1=\frac{\pi}{9}+\frac{2\pi n}{3};\ \ \ x_2=-\frac{\pi}{9}+\frac{2\pi k}{3}  

 x1=π9+2πn3;   x2=5π9+2πk3x_1=\frac{\pi}{9}+\frac{2\pi n}{3};\ \ \ x_2=\frac{5\pi}{9}+\frac{2\pi k}{3}  

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