JUMLAH DAN SELISIH TRIGONOMETRI

JUMLAH DAN SELISIH TRIGONOMETRI

11th Grade

20 Qs

quiz-placeholder

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JUMLAH DAN SELISIH TRIGONOMETRI

JUMLAH DAN SELISIH TRIGONOMETRI

Assessment

Quiz

Mathematics

11th Grade

Hard

Created by

Alisa's Project

Used 18+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jika  tanα=724 \tan\alpha=\frac{7}{24}\   dan  tanβ=43\tan\beta=\frac{4}{3}   dengan  α\alpha  dan  β\beta  sudut lancip, hasil dari  cos(α+β)=....\cos\left(\alpha+\beta\right)=....  

 44125\frac{44}{125}  

 75125\frac{75}{125}  

 96125\frac{96}{125}  

 115125\frac{115}{125}  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pada suatu segitiga siku-siku ABC dengan siku-siku di C berlaku  \cos A.\cos B=\frac{1}{2} . Nilai dari  cos(αβ)=....\cos\left(\alpha-\beta\right)=....  


 1-1  

 12-\frac{1}{2}  

 00  

 11  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jika  \left(\alpha+\beta\right)=30\degree  dan    sinα.cosβ=13\sin\alpha.\cos\beta=\frac{1}{3}  , maka  cosα.sinβ=....\cos\alpha.\sin\beta=....  


 16\frac{1}{6}  

 15\frac{1}{5}  

 14\frac{1}{4}  

 13\frac{1}{3}  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 cos 75° cos 15°=....\cos\ 75\degree-\ \cos\ 15\degree=....  

1

 122\frac{1}{2}\sqrt{2}  

 2\sqrt{2}  

 122-\frac{1}{2}\sqrt{2}  

 2-\sqrt{2}  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 sin 4a° + sin 2a°cos 4a° + cos 2a°=....\frac{\sin\ 4a\degree\ +\ \sin\ 2a\degree}{\cos\ 4a\degree\ +\ \cos\ 2a\degree}=....  

 tan a°\tan\ a\degree  

 tan 3a°\tan\ 3a\degree  

 sin 2a°\sin\ 2a\degree  

 2 sin a° cos a°2\ \sin\ a\degree\ \cos\ a\degree  

1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nilai  cos(α30°)\cos\left(\alpha-30\degree\right)  = ....

 123(sinα+cosα)\frac{1}{2}\sqrt{3}\left(\sin\alpha+\cos\alpha\right)   

  123(cosαsinα)\frac{1}{2}\sqrt{3}\left(\cos\alpha-\sin\alpha\right)  

  12(3cosα+sinα)\frac{1}{2}\left(\sqrt{3}\cos\alpha+\sin\alpha\right)  

 12(cosα3sinα)\frac{1}{2}\left(\cos\alpha-\sqrt{3}\sin\alpha\right)  

  12(cosα+3sinα)\frac{1}{2}\left(\cos\alpha+\sqrt{3}\sin\alpha\right)  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Nilai dari

 2(sin80°.cos70+cos80°.sin70°)=......2\left(\sin80\degree.\cos70+\cos80\degree.\sin70\degree\right)=......  

 12\frac{1}{2}  

 122\frac{1}{2}\sqrt{2}  

 123\frac{1}{2}\sqrt{3}  

 11  

 32\frac{3}{2}  

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