Free Printable Trigonometri Analitik (Jumlah dan selisih sudut)

1.

$\cos\ \left(x+30\degree\right)=$

a)

$\frac{1}{2}\sqrt{3}\left(\cos\ x+\sin x\right)$

b)

$\frac{1}{2}\sqrt{3}\left(\cos\ x-\sin x\right)$

c)

$\frac{1}{2}\left(\sqrt{3}\cos\ x-\sin x\right)$

d)

$\frac{1}{2}\left(\cos\ x-\sqrt{3}\sin x\right)$

e)

$\frac{1}{2}\left(\cos\ x+\sqrt{3}\sin x\right)$

2.

$\cos\ \left(x-45\degree\right)=...$

a)

$\frac{1}{2}\sqrt{2}\left(\cos\ x+\sin x\right)$

b)

$\frac{1}{2}\sqrt{2}\left(\cos\ x-\sin x\right)$

c)

$\frac{1}{2}\sqrt{2}\left(\sin\ x-\cos x\right)$

d)

$\frac{1}{2}\sqrt{3}\left(\cos\ x+\sin x\right)$

e)

$\frac{1}{2}\sqrt{3}\left(\cos\ x-\sin x\right)$

3.

Nilai dari $\sin\ 79\degree\ \cos\ 11\degree+\cos\ 79\degree\sin11\degree\$ adalah ...

a)

$0$

b)

$\frac{1}{2}$

c)

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

d)

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

e)

$1$

4.

Jika $\sin\ 50\degree=a$ , maka $\sin\ 140\degree=...$

a)

$\sqrt{1-a^2}$

b)

$\sqrt{1+a^2}$

c)

$1-\sqrt{1+a^2}$

d)

$\frac{1}{\sqrt{1-a^2}}$

e)

$\frac{1}{\sqrt{1+a^2}}$

5.

Bentuk sederhana dari ekspresi $\frac{\tan\frac{\pi}{9}+\tan\frac{2\pi}{9}}{1-\tan\frac{\pi}{9}.\tan\frac{2\pi}{9}}=...$

a)

$\tan\frac{\pi}{3}$

b)

$\tan\frac{\pi}{4}$

c)

$\tan\frac{\pi}{6}$

d)

$\tan\frac{\pi}{9}$

e)

$\tan\frac{\pi}{18}$

Trigonometri Analitik (Jumlah dan selisih sudut)

Total questions: 5

Worksheet time: 10mins

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