тригонометрия

тригонометрия

11th Grade

16 Qs

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тригонометрия

тригонометрия

Assessment

Quiz

Mathematics

11th Grade

Hard

Created by

Dauren Tolbassy

Used 104+ times

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

  tgx3\ tgx\le\sqrt{3}  

 [π3+πn;π2+πn]\left[\frac{\pi}{3}+\pi n;\frac{\pi}{2}+\pi n\right]  

 [π3+πn;π2+πn)\left[\frac{\pi}{3}+\pi n;\frac{\pi}{2}+\pi n\right)  

 [π2+πn;π3+πn)\left[-\frac{\pi}{2}+\pi n;\frac{\pi}{3}+\pi n\right)  

 (π2+πn;π3+πn]\left(-\frac{\pi}{2}+\pi n;\frac{\pi}{3}+\pi n\right]  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 sin3x12\sin3x\ge\frac{1}{\sqrt{2}}  

 [π12+2πn3;π4+2πn3;]\left[\frac{\pi}{12}+\frac{2\pi n}{3};\frac{\pi}{4}+\frac{2\pi n}{3};\right]  

 [π4+2πn;3π4+2πn;]\left[\frac{\pi}{4}+2\pi n;\frac{3\pi}{4}+2\pi n;\right]  

 [π12+2πn;π4+2πn;]\left[-\frac{\pi}{12}+2\pi n;\frac{\pi}{4}+2\pi n;\right]  

 [3π4+6πn;π4+6πn;]\left[\frac{3\pi}{4}+6\pi n;\frac{\pi}{4}+6\pi n;\right]  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 cos2x>32\cos2x>-\frac{\sqrt{3}}{2}  

 (5π12+2πn2;5π4+2πn2;)\left(-\frac{5\pi}{12}+\frac{2\pi n}{2};\frac{5\pi}{4}+\frac{2\pi n}{2};\right)  

 (5π12+2πn2;5π12+2πn2;)\left(-\frac{5\pi}{12}+\frac{2\pi n}{2};\frac{5\pi}{12}+\frac{2\pi n}{2};\right)  

 (π12+2πn;π4+2πn;)\left(-\frac{\pi}{12}+2\pi n;\frac{\pi}{4}+2\pi n;\right)  

 (2π3+2πn2;2π3+2πn2;)\left(-\frac{2\pi}{3}+\frac{2\pi n}{2};\frac{2\pi}{3}+\frac{2\pi n}{2};\right)  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 ctg(x3+π6)3\operatorname{ctg}\left(\frac{x}{3}+\frac{\pi}{6}\right)\le-\sqrt{3}  

 [2π+3πk; 2.5π+3πk]\left[-2\pi+3\pi k;\ 2.5\pi+3\pi k\right]  

 (2π+3πk; 2.5π+3πk)\left(2\pi+3\pi k;\ 2.5\pi+3\pi k\right)  

 [2π+3πk; 53π+3πk)\left[2\pi+3\pi k;\ \frac{5}{3}\pi+3\pi k\right)  

 (2π3+2πn2;2π3+2πn2;)\left(-\frac{2\pi}{3}+\frac{2\pi n}{2};\frac{2\pi}{3}+\frac{2\pi n}{2};\right)  

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 2tg(xπ6)312tg\left(x-\frac{\pi}{6}\right)-3\le-1  

 (4π3+πk; 5π12+πk)\left(-\frac{4\pi}{3}+\pi k;\ \frac{5\pi}{12}+\pi k\right)  

 (2π3+πk; 5π12+πk]\left(-\frac{2\pi}{3}+\pi k;\ \frac{5\pi}{12}+\pi k\right]  

 (π3+πk; 5π12+πk)\left(-\frac{\pi}{3}+\pi k;\ \frac{5\pi}{12}+\pi k\right)  

 (π3+πk; 5π12+πk]\left(-\frac{\pi}{3}+\pi k;\ \frac{5\pi}{12}+\pi k\right]  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 3tg(4xπ3)3<03tg\left(-4x-\frac{\pi}{3}\right)-3<0  

 [7π48+πk4;π24+πk4]\left[\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{\pi}{24}+\frac{\pi k}{4}\right]  

 (7π48+πk4;5π24+πk4)\left(\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{5\pi}{24}+\frac{\pi k}{4}\right)  

 (7π48+πk4;π24+πk4)\left(\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{\pi}{24}+\frac{\pi k}{4}\right)  

 (7π48+πk4;π24+πk4]\left(\frac{-7\pi}{48}+\frac{\pi k}{4};\frac{\pi}{24}+\frac{\pi k}{4}\right]  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 2ctg( x3π6)+1202\operatorname{ctg}(\ \frac{x}{3}-\frac{\pi}{6})+\sqrt{12}\ge0  

 (π2+3πk;3π+3πk)\left(-\frac{\pi}{2}+3\pi k;3\pi+3\pi k\right)  

 (π2+3πk;3π+3πk]\left(\frac{\pi}{2}+3\pi k;3\pi+3\pi k\right]  

 (π4+3πk;π+3πk]\left(\frac{\pi}{4}+3\pi k;\pi+3\pi k\right]  

 (π8+3πk;2π+3πk)\left(\frac{\pi}{8}+3\pi k;2\pi+3\pi k\right)  

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