Quiz about Trigonometri Analitik

Question 1

$$\sin95^0\ \cos\ 55^0\ +\ \sin\ 55^0\ \cos\ 95^{0\ }=\ ...$$

Accepted Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{2}\sqrt[]{2}$$

Answer

$$\frac{1}{2}\sqrt[]{3}$$

Answer

1

Answer

0

Question 2

$$\cos75^0\cos15^0+\sin75^0\sin15^0=...$$

Accepted Answer

$$\frac{1}{2}$$

Answer

0

Answer

1

Answer

$$\frac{1}{2}\sqrt[]{2}$$

Answer

$$\frac{1}{2}\sqrt[]{3}$$

Question 3

$$\frac{ an60°\ + an30°}{1− an60° an30°}=...$$

Accepted Answer

tidak terdefinisi

Answer

0

Answer

1

Answer

$$\frac{1}{3}\sqrt[]{3}$$

Answer

$$\sqrt[]{3}$$

Question 4

Nilai sin 3x cos 2x + cos 3x sin 2x = ...

Accepted Answer

sin 5x

Answer

sin x

Answer

cos x

Answer

cos 5x

Answer

cos 3x

Question 5

$$\sin\ 20^0\ =\ ...$$

Accepted Answer

$$2\sin10^o\cos10^o$$

Answer

$$2\sin10^o\cos20^o$$

Answer

$$\sin10^o\cos10^o$$

Answer

$$\cos^210^o-\sin^210^o$$

Answer

$$1−2\cos210^0$$

Question 6

$$\frac{2 an7a}{1- an^2\ 7a}=....$$

Accepted Answer

tan 14a

Answer

tann 7a

Answer

tan 3,5a

Answer

tan 10a

Answer

tan 15a

Question 7

$$\cos^222,5^o\ -\ \sin^222,5^o\ =\ ...$$

Accepted Answer

$$\frac{1}{2}\sqrt[]{2}$$

Answer

0

Answer

$$\frac{1}{2}$$

Answer

$$\frac{1}{2}\sqrt[]{3}$$

Answer

1

Question 8

2 sin A cos B = sin (A+B) + sin (A-B)

Accepted Answer

benar

Answer

salah

Question 9

$$\sin A-\sin B=\ 2\ \cos\frac{1}{2}(A+B)\cos\frac{1}{2}(A-B)$$

Accepted Answer

salah

Answer

benar

Question 10

$$\sin\ 75^0\ -\ \sin\ 165^0\ =\ ...$$

Accepted Answer

$$\frac{1}{2}\sqrt[]{2}$$

Answer

$$\frac{1}{4}\sqrt[]{2}$$

Answer

$$\frac{1}{4}\sqrt[]{3}$$

Answer

$$\frac{1}{4}\sqrt[]{6}$$

Answer

$$\frac{1}{2}\sqrt[]{3}$$

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