Формулы тригонометрии 6. Вариант 1

Формулы тригонометрии 6. Вариант 1

10th Grade

11 Qs

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Формулы тригонометрии 6. Вариант 1

Формулы тригонометрии 6. Вариант 1

Assessment

Quiz

Mathematics

10th Grade

Practice Problem

Medium

Created by

Ирина Быстрицкая

Used 15+ times

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11 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 cos(α+β)\cos\left(\alpha+\beta\right)  

 cosαcosβsinαsinβ\cos\alpha\cos\beta-\sin\alpha\sin\beta  

 cosαcosβ+sinαsinβ\cos\alpha\cos\beta+\sin\alpha\sin\beta  

 sinαcosβ+cosαsinβ\sin\alpha\cos\beta+\cos\alpha\sin\beta  

 sinαcosβcosαsinβ\sin\alpha\cos\beta-\cos\alpha\sin\beta  

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 sin(αβ)\sin\left(\alpha-\beta\right)  

 cosαcosβsinαsinβ\cos\alpha\cos\beta-\sin\alpha\sin\beta  

 cosαcosβ+sinαsinβ\cos\alpha\cos\beta+\sin\alpha\sin\beta  

 sinαcosβ+cosαsinβ\sin\alpha\cos\beta+\cos\alpha\sin\beta  

 sinαcosβcosαsinβ\sin\alpha\cos\beta-\cos\alpha\sin\beta  

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 cos2α\cos2\alpha  

 cos2αsin2α\cos^2\alpha-\sin^2\alpha  

 sin2αcos2α\sin^2\alpha-\cos^2\alpha  

 2cos2 α12\cos^{2\ }\alpha-1  

 12cos2α1-2\cos^2\alpha  

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 tg(αβ)tg\left(\alpha-\beta\right)  

 tgαtgβ1+tgα tgβ\frac{tg\alpha-tg\beta}{1+tg\alpha\ tg\beta}  

 tgα+tgβ1tgα tgβ\frac{tg\alpha+tg\beta}{1-tg\alpha\ tg\beta}  

 tgαtgβ1tgα tgβ\frac{tg\alpha-tg\beta}{1-tg\alpha\ tg\beta}  

 tgα+tgβ1+tgα tgβ\frac{tg\alpha+tg\beta}{1+tg\alpha\ tg\beta}  

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 sinα+sinβ\sin\alpha+\sin\beta  

 2sin α+β2cos αβ22\sin\ \frac{\alpha+\beta}{2}\cos\ \frac{\alpha-\beta}{2}  

 2 sin αβ2 cos α+β22\ \sin\ \frac{\alpha-\beta}{2}\ \cos\ \frac{\alpha+\beta}{2}  

 2 sin α+β2 sin αβ22\ \sin\ \frac{\alpha+\beta}{2}\ \sin\ \frac{\alpha-\beta}{2}  

 2 cos α+β2 cos αβ22\ \cos\ \frac{\alpha+\beta}{2}\ \cos\ \frac{\alpha-\beta}{2}  

6.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 sin2 α\sin^{2\ }\alpha  

 1cos2α2\frac{1-\cos2\alpha}{2}  

 12cosα2\frac{1-2\cos\alpha}{2}  

 1+cos2α2\frac{1+\cos2\alpha}{2}  

 cos2α12\frac{\cos2\alpha-1}{2}  

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 1+tg2α1+tg^2\alpha  

 1cos2α\frac{1}{\cos^2\alpha}  

 1cos2α-\frac{1}{\cos^2\alpha}  

 1sin2α\frac{1}{\sin^2\alpha}  

 1sin2α-\frac{1}{\sin^2\alpha}  

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