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Синус, косинус, тангенс двойного угла

Authored by Ирина Киселева

Mathematics

10th - 11th Grade

CCSS covered

Used 51+ times

Синус, косинус, тангенс двойного угла
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8 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

sin 6 x =

2 sin 6 x cos 6 x

2 sin 3 x cos 3 x

sin 3 x cos 3 x

sin 6 x cos 6 x

Tags

CCSS.HSF.TF.C.9

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

cos  π6\frac{\pi}{6}  =

 cos2\cos^2   π12\frac{\pi}{12}  -  sin2\sin^2   π12\frac{\pi}{12}  

 cos2\cos^2   π6\frac{\pi}{6}  -  sin2\sin^2   π6\frac{\pi}{6}  

 cos2\cos^2   π6\frac{\pi}{6}  -  sin2\sin^2   π6\frac{\pi}{6}  

 cos2 \cos^2\    π12\frac{\pi}{12}  -   sin2\sin^2   π12\frac{\pi}{12}  

Tags

CCSS.HSF.TF.C.9

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

sin π10\frac{\pi}{10}  =

 sin2\sin^2   π10\frac{\pi}{10}  -  cos2\cos^2   π10\frac{\pi}{10}  

 sin\sin   π10\frac{\pi}{10}   cos\cos   π10\frac{\pi}{10}  

 sin\sin   π20\frac{\pi}{20}   cos\cos   π20\frac{\pi}{20}  

 sin2\sin^2   π20\frac{\pi}{20}  -   cos2\cos^2   π20\frac{\pi}{20}  

Tags

CCSS.HSF.TF.C.9

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

cos 4 x =

2 cos 2 x sin 2 x

cos2\cos^2 2 x - sin2\sin^2 2 x

cos2\cos^2 4 x - sin2\sin^2 4 x

2 cos 4 x sin 4 x

Tags

CCSS.HSF.TF.C.9

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Вычислите 2 sin 15 °\degree  cos 15 °\degree  

30

15

1

 12\frac{1}{2}  

Tags

CCSS.HSF.TF.C.9

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Вычислите cos2\cos^2   π8\frac{\pi}{8}  -  sin2\sin^2   π8\frac{\pi}{8}  

 22\frac{\sqrt{2}}{2}  

 12\frac{1}{2}  

1

Tags

CCSS.HSF.TF.C.9

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Вычислите 2 tg15° 1 tg215°\frac{2\ tg15\degree\ }{1-\ tg^215\degree}  

 33\frac{\sqrt{3}}{3}  

 3\sqrt{3}  

1

Tags

CCSS.HSF.TF.C.9

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