Free Printable Kuis 5 (Sudut Rangkap)

1.

Rumus sudut rangkap untuk $\sin\ 2\alpha$ sama dengan...

a)

$\cos\ \alpha\ \sin\ \alpha$

b)

$\sin\ \alpha\ \cos\ \alpha$

c)

$2\ \cos\ \alpha\ \sin\ \alpha$

d)

$2\ \sin\ \alpha\ \cos\ \alpha$

2.

Rumus sudut rangkap untuk $\cos\ 2\alpha$ , kecuali...

a)

$\cos^2\alpha-\sin^2\alpha$

b)

$2\ \cos\ \alpha\ \cos\ \alpha$

c)

$1-2\sin^2\alpha$

d)

$2\ \cos^2\alpha-1$

3.

Rumus sudut rangkap untuk $\tan\ 2\alpha$ sama dengan...

a)

$\frac{\tan^2\alpha}{1-\tan\alpha}$

b)

$\frac{2\ \tan\ \alpha}{1-\tan^2\alpha}$

c)

$\frac{2\ \tan\ \alpha}{1+\tan^2\alpha}$

d)

$\frac{\tan^2\alpha}{1+\tan\alpha}$

4.

Jika $\sin\ 2\alpha=\frac{3}{5}$ , maka $\cos\ 2\alpha=...$

a)

$\frac{4}{5}$

b)

$\frac{5}{4}$

c)

$\frac{3}{4}$

d)

$\frac{4}{3}$

5.

$\sin\alpha=\frac{3}{5},\ \cos\alpha=\frac{4}{5}$ , maka $\sin\ 2\alpha=...$

a)

$-\frac{12}{25}$

b)

$-\frac{24}{25}$

c)

$\frac{12}{25}$

d)

$\frac{24}{25}$

6.

$\sin\ 2\alpha=\frac{4}{5},\ \cos\ 2\alpha=-\frac{3}{5}$ , maka $\tan\ 2\alpha=...$

a)

$\frac{4}{3}$

b)

$-\frac{3}{4}$

c)

$\frac{3}{4}$

d)

$-\frac{4}{3}$

7.

Jika $\sin\alpha=\frac{4}{5},\ \cos\alpha=-\frac{3}{5}$ , maka $\cos\ 2\alpha=...$

a)

$\frac{7}{25}$

b)

$-\frac{24}{25}$

c)

$-\frac{7}{25}$

d)

$\frac{24}{25}$

8.

$\tan\ 2\alpha=\frac{2m}{1-m^2},\ \tan\ \alpha=...$

a)

$m$

b)

$m^2$

c)

$2m$

d)

$-m^2$

9.

Jika $\sin\ 2\alpha=\sin\left(\alpha+\alpha\right)$ , maka $\sin\ 4\alpha=...$

a)

$\sin\left(3\alpha+a\right)$

b)

$\sin\left(2\alpha+2a\right)$

c)

$\sin\left(4\alpha\right)$

d)

$\cos\left(2\alpha+2a\right)$

10.

Hitunglah $\tan\ 2x$ jika $\tan x=\frac{1}{6}$ !

a)

$\frac{12}{35}$

b)

$\frac{35}{36}$

c)

$-\frac{35}{36}$

d)

$-\frac{12}{35}$

Kuis 5 (Sudut Rangkap)

Total questions: 10

Worksheet time: 8mins

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