Формулы приведения тригонометрических функции

Формулы приведения тригонометрических функции

9th Grade

11 Qs

quiz-placeholder

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Формулы приведения тригонометрических функции

Формулы приведения тригонометрических функции

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Раушан Мынболовна

Used 40+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражение

 tg(πα)tg\left(\pi-\alpha\right)  

 -tg\alpha

-ctgα

tga

ctga

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражение  cos(360°α)\cos\left(360\degree-\alpha\right)  

cosa

sina

-cosa

-sina

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражения:

 cos(90°)\cos\left(90\degree-\propto\right)  

sina

cosa

tga

ctga

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражение

 tg(270+a)tg\left(270+a\right)  

tga

-ctga

-tga

ctga

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражение

 tg(270+a)tg\left(270+a\right)  

tga

-ctga

-tga

ctga

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражение:

 sin(180°α)\sin\left(180\degree-\alpha\right)  

-sina

sina

cosa

-cosa

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Упростите выражение:

 sin(90°+α)\sin\left(90\degree+\alpha\right)  

sina

cosa

-sina

-cosa

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