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Формулы приведения

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

sin⁡170°=\sin170\degree=

a)

cos⁡10°\cos10\degree

b)

−cos⁡10°-\cos10\degree

c)

sin⁡10°\sin10\degree

d)

−sin⁡10°-\sin10\degree

2.

sin⁡170°=\sin170\degree=

a)

cos⁡80°\cos80\degree

b)

−cos⁡80°-\cos80\degree

c)

sin⁡80°\sin80\degree

d)

−sin⁡80°-\sin80\degree

3.

sin⁡(3π2−α)=\sin\left(\frac{3\pi}{2}-\alpha\right)=

a)

sin⁡α\sin\alpha

b)

cos⁡α\cos\alpha

c)

−sin⁡α-\sin\alpha

d)

−cos⁡α-\cos\alpha

4.

cos⁡(3π2+α)=\cos\left(\frac{3\pi}{2}+\alpha\right)=

a)

sin⁡α\sin\alpha

b)

cos⁡α\cos\alpha

c)

−sin⁡α-\sin\alpha

d)

−cos⁡α-\cos\alpha

5.

cos⁡(π2+α)=\cos\left(\frac{\pi}{2}+\alpha\right)=

a)

sin⁡α\sin\alpha

b)

cos⁡α\cos\alpha

c)

−sin⁡α-\sin\alpha

d)

−cos⁡α-\cos\alpha

6.

cos⁡(π−α)=\cos\left(\pi-\alpha\right)=

a)

sin⁡α\sin\alpha

b)

cos⁡α\cos\alpha

c)

−sin⁡α-\sin\alpha

d)

−cos⁡α-\cos\alpha

7.

sin⁡(π−α)=\sin\left(\pi-\alpha\right)=

a)

sin⁡α\sin\alpha

b)

cos⁡α\cos\alpha

c)

−sin⁡α-\sin\alpha

d)

−cos⁡α-\cos\alpha

8.

cos⁡290°=\cos290\degree=

a)

sin⁡20°\sin20\degree

b)

−cos⁡20°-\cos20\degree

c)

cos⁡20°\cos20\degree

d)

−sin⁡20°-\sin20\degree

9.

sin⁡350°=\sin350\degree=

a)

−sin⁡80°-\sin80\degree

b)

−cos⁡80°-\cos80\degree

c)

cos⁡80°\cos80\degree

d)

sin⁡80°\sin80\degree

10.

Знаки синуса

a)

b)

c)

11.

Знаки косинуса

a)
b)
c)
12.

Знаки тангенса и котангенса

a)
b)
c)
13.

cos⁡5π8=\cos\frac{5\pi}{8}=

a)

sin⁡ π8\sin\ \frac{\pi}{8}

b)

−cos⁡π8-\cos\frac{\pi}{8}

c)

cos⁡π8\cos\frac{\pi}{8}

d)

−sin⁡π8-\sin\frac{\pi}{8}

14.

tg19π12=tg\frac{19\pi}{12}=

a)

tg 7π12tg\ \frac{7\pi}{12}

b)

−tg 7π12-tg\ \frac{7\pi}{12}

c)

ctg⁡ 7π12\operatorname{ctg}\ \frac{7\pi}{12}

d)

−ctg⁡ 7π12-\operatorname{ctg}\ \frac{7\pi}{12}

15.

sin⁡13π8=\sin\frac{13\pi}{8}=

a)

sin⁡ π8\sin\ \frac{\pi}{8}

b)

−cos⁡π8-\cos\frac{\pi}{8}

c)

cos⁡π8\cos\frac{\pi}{8}

d)

−sin⁡π8-\sin\frac{\pi}{8}