Quiz about Persamaan Trigonometri

Question 1

Penyelesaian persamaan sin x = sin $$\alpha$$ adalah... .

Accepted Answer

x = $$\alpha$$ + k. $$360\degree$$

Accepted Answer

x = $$\left(180\degree-\alpha\right)\ +k.\ 360\degree$$

Answer

x = $$-\alpha\ +\ k.360\degree$$

Answer

x = $$\alpha\ +\ k.180\degree$$

Question 2

Penyelesaian persamaan cos x = cos $$\alpha$$ adalah... .

Accepted Answer

x = $$\alpha\ +\ k.360\degree$$

Accepted Answer

x = $$-\alpha\ +\ k.\ 360\degree$$

Answer

x = $$\left(180\degree-\alpha\right)\ +\ k.\ 360\degree$$

Answer

x = $$\alpha\ +\ k.180\degree$$

Question 3

Yang merupakan cara penyelesaian dari a cos x + b sin x = c adalah... .

Accepted Answer

$$k^2\ =\ a^2\ +\ b^2$$

Accepted Answer

$$k\ \cos\ \left(x-\alpha\right)\ =\ c$$

Accepted Answer

$$\alpha\ =arc\left( an\left(\frac{b}{a} ight) ight)$$

Answer

$$k\ =\ a^2\ +\ b^2$$

Answer

$$\alpha\ =\ arc\ \left( an\left(\frac{a}{b} ight) ight)$$

Question 4

ada berapa persamaan Trigonometri yang sudah kita bahas... .

Accepted Answer

5

Answer

4

Answer

3

Answer

2

Question 5

nilai $$\pi$$ = ... .

Accepted Answer

$$180\degree$$

Answer

$$90\degree$$

Answer

$$270\degree$$

Answer

$$360\degree$$

Question 6

$$\frac{5}{4}\pi$$ = ... .

Accepted Answer

$$225\degree$$

Answer

$$135\degree$$

Answer

$$255\degree$$

Answer

$$315\degree$$

Question 7

$$330\degree$$ = ... .

Accepted Answer

$$\frac{11}{6}\pi$$

Answer

$$\frac{7}{6}\pi$$

Answer

$$\frac{8}{6}\pi$$

Answer

$$\frac{13}{6}\pi$$

Question 8

Faktor dari $$a^2\ -\ a\ -2\ =\ 0$$

Accepted Answer

(a + 1)(a - 2) = 0

Answer

(a + 1)(a + 1) = 0

Answer

(a - 1)(a - 2) = 0

Question 9

faktor dari $$b^2\ +\ 8b\ +12\ =\ 0$$

Accepted Answer

$$\left(b\ +6\right)\left(b\ +2\right)=0$$

Answer

$$\left(b+6\right)\left(b-2\right)=0$$

Answer

$$\left(b-6\right)\left(b+2\right)=0$$

Answer

$$\left(b-6\right)\left(b-2\right)=0$$

Question 10

faktor dari $$2a^2-a\ -6\ =\ 0$$ !

Accepted Answer

$$\left(2a+3\right)\left(a-2\right)=0$$

Answer

$$\left(2a+3\right)\left(a+2\right)=0$$

Answer

$$\left(2a-3\right)\left(a+2\right)=0$$

Answer

$$\left(2a-3\right)\left(a-2\right)=0$$

Question 11

faktor dari $$2a^2-9a\ +10\ =0$$ adalah... .

Accepted Answer

(2a-5)(a-2)=0

Answer

(2a+5)(a+2)= 0

Answer

(2a+5)(a-2)= 0

Answer

(2a-5)(a+2)= 0

Question 12

nilai x dari sin x = $$\frac{1}{2}\sqrt[]{3}$$ , untuk $$0^{\degree}\le x\le360^{\degree}$$ adalah... .

Accepted Answer

$$\left\{60\degree,120\degree\right\}$$

Answer

$$\left\{30\degree,150\degree\right\}$$

Answer

$$\left\{30\degree,210\degree\right\}$$

Answer

$$\left\{60\degree,240\degree\right\}$$

Question 13

nilai x dari tan x = -1 untuk $$0\le x\le2\pi$$ adalah... .

Accepted Answer

$$\left\{\frac{3\pi}{4},\frac{7\pi}{4}\right\}$$

Answer

$$\left\{\frac{\pi}{4},\frac{3\pi}{4}\right\}$$

Answer

$$\left\{\frac{3\pi}{4},\frac{5\pi}{4}\right\}$$

Answer

$$\left\{\frac{\pi}{4},\frac{5\pi}{4}\right\}$$

Question 14

faktor dari $$\cos^2x\ -\cos x\ -2\ =0$$ adalah... .

Accepted Answer

$$\left(\cos x+1\right)\left(\cos x-2\right)=0$$

Answer

$$\left(\cos x\ -1\right)\left(\cos x-2\right)=0$$

Answer

$$\left(\cos x\ -1\right)\left(\cos x+2\right)=0$$

Answer

$$\left(\cos x+1\right)\left(\cos x+2\right)=0$$

Question 15

nilai k dari persamaan $$\sqrt[]{3}\cos x+\sin x=1$$ adalah... .

Accepted Answer

2

Answer

$$\sqrt[]{2}$$

Answer

-2

Answer

$$-\sqrt[]{2}$$

Question 16

nilai $$\alpha$$ dari $$\sqrt[]{3}\cos x\ +\ \sin\ x\ =1$$ adalah...

Accepted Answer

$$30\degree$$

Answer

$$150\degree$$

Answer

$$60\degree$$

Answer

$$120\degree$$

Persamaan Trigonometri

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