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PERSAMAAN TRIGONOMETRI

Authored by 39J Krisnawati Purnamasari

Mathematics

12th Grade

Used 16+ times

PERSAMAAN TRIGONOMETRI
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Penyelesaian dari cos x =  123-\frac{1}{2}\sqrt{3}  dengan  0°x360°0\degree\le x\le360\degree  adalah ....

 x=30°, 150°x=30\degree,\ 150\degree  

 x=120°, 210°x=120\degree,\ 210\degree  

 x=150°, 210°x=150\degree,\ 210\degree  

 x=150°, 300°x=150\degree,\ 300\degree  

 x=150°, 330°x=150\degree,\ 330\degree  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tentukan penyelesaian persamaan  2 sin x  2=02\ \sin\ x\ -\ \sqrt{2}=0  untuk  0 x2π0\ \le x\le2\pi  

 3π4 atau 5π4\frac{3\pi}{4}\ atau\ \frac{5\pi}{4}  

 π6 atau 5π6\frac{\pi}{6}\ atau\ \frac{5\pi}{6}  

 π4 atau 3π4\frac{\pi}{4}\ atau\ \frac{3\pi}{4}  

 5π6 atau 7π6\frac{5\pi}{6}\ atau\ \frac{7\pi}{6}  

 π4 atau 3π4-\frac{\pi}{4}\ atau\ \frac{3\pi}{4}  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 cos θ   =12,  untuk  00  θ 3600  adalah ...\cos\ \theta\ \ \ =-\frac{1}{2},\ \ untuk\ \ 0^0\ \le\ \theta\ \le360^0\ \ adalah\ ... 

Himpunan penyelesaian dari persamaan di atas  adalah ... 

  {1200 dan 2400}\left\{120^0\ dan\ 240^0\right\}  

 {1500 dan 2100}\left\{150^0\ dan\ 210^0\right\}  

 {1200 dan 2100}\left\{120^0\ dan\ 210^0\right\}  

 {600 , 2400}\left\{60^0\ ,\ 240^0\right\}  

 {600, 1200}\left\{60^0,\ 120^0\right\}  

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Diketahui sin A = 4/5 (empat per lima), maka perbandingan trigonometri yang lain adalah ....

Cos A= 5/3

Cos A= 3/5

Tan A=4/3

Tan A = 3/4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Himpunan penyelesaian dari  sin(x+23π)=sin(14π)\sin⁡(x+\frac{2}{3}π)=\sin⁡\left(\frac{1}{4}π\right)  untuk  0°x2π0°≤x≤2π  adalah . . .

 {1112π,2312π}\left\{\frac{11}{12}π,\frac{23}{12}π\right\}  

 {1112π,1912π}\left\{\frac{11}{12}π,\frac{19}{12}π\right\}  

 {112π,2312π}\left\{\frac{1}{12}π,\frac{23}{12}π\right\}  

 {112π,1712π}\left\{\frac{1}{12}π,\frac{17}{12}π\right\}  

 {112π,1912π}\left\{\frac{1}{12}π,\frac{19}{12}π\right\}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

nilai x yang memenuhi persamaan   3+23sin x = 0 \ 3+2\sqrt{3}\sin\ x\ =\ 0\   untuk  0x2π0\le x\le2\pi  adalah...

 4π3atau 5π3\frac{4\pi}{3}atau\ \frac{5\pi}{3}  

 4π3atau 5π3-\frac{4\pi}{3}atau\ \frac{5\pi}{3}  

 4π3atau 5π3\frac{4\pi}{3}atau\ -\frac{5\pi}{3}  

 4π3atau 5π3-\frac{4\pi}{3}atau\ -\frac{5\pi}{3}  

 2π3atau 5π3\frac{2\pi}{3}atau\ \frac{5\pi}{3}  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Penyelesaian dari persamaan 2sin2xsinx1=02\sin^2x-\sin x-1=0   untuk  180°x360°180\degree\le x\le360\degree  adalah ...

 150°150\degree  dan  180°180\degree  

 180°180\degree  dan  210°210\degree  

 210°210\degree  dan 330°330\degree  

 240°240\degree  dan  270°270\degree  

 300°300\degree  dan 330°330\degree  

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