Тригонометрия на 11.03

Тригонометрия на 11.03

11th Grade

17 Qs

quiz-placeholder

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Тригонометрия на 11.03

Тригонометрия на 11.03

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Hard

Created by

Валентина Мальцева

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

основное тригонометрическое тождество

sin2x +cos2x=1\sin^2x\ +\cos^2x=1

1+tg2x=1cos2x1+tg^2x=\frac{1}{\cos^2x}

sin2x+cos2y=1\sin^2x+\cos^2y=1

tgx×ctgx=1tgx\times\operatorname{ctg}x=1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 sin π3=\sin\ \frac{\pi}{3}=  

 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 22\frac{\sqrt{2}}{2}  

0

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos π4=\cos\ \frac{\pi}{4}=  

 12\frac{1}{2}  

 32\frac{\sqrt{3}}{2}  

 22\frac{\sqrt{2}}{2}  

0

4.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

КОТАНГЕНС это отношение

синуса к косинусу

косинуса к синусу

синуса к котангенсу

косинуса к котангенсу

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Какая из функций положительна в четвёртой четверти

sin(x)

cos(x)

tg(x)

ctg(x)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Укажите четверть в которой находится угол с картинки

I

II

III

IV

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 Решение уравнения sinx=1Решение\ уравнения\ \sin x=1  

 x=2πk; kNx=2\pi k;\ k\in N  

 x=π2+2πk: kNx=\frac{\pi}{2}+2\pi k:\ k\in N  

 x=π2+2πk: kNx=-\frac{\pi}{2}+2\pi k:\ k\in N  

 x=π2+πk: kNx=\frac{\pi}{2}+\pi k:\ k\in N  

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