Rumus Perkalian Sinus dan Cosinus

Rumus Perkalian Sinus dan Cosinus

11th Grade

10 Qs

quiz-placeholder

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Rumus Perkalian Sinus dan Cosinus

Rumus Perkalian Sinus dan Cosinus

Assessment

Quiz

Mathematics

11th Grade

Practice Problem

Medium

Created by

Ahmad Dulrohim

Used 119+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Nilai dari  sin210o sin 15o sin 75o\sin210^o\ \sin\ 15^o\ \sin\ 75^o  = ....

 18-\frac{1}{8}  

 12-\frac{1}{2}  

 14-\frac{1}{4}  

 11  

 22  

2.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Nilai dari  sin 45o cos15o=......\sin\ 45^o\ \cos15^o=......  

 14(31)\frac{1}{4}\left(\sqrt{3}-1\right)  

 14(3+1)\frac{1}{4}\left(\sqrt{3}+1\right)  

 14(13)\frac{1}{4}\left(1-\sqrt{3}\right)  

 12(31)\frac{1}{2}\left(\sqrt{3}-1\right)  

 12\frac{1}{2}  

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Nilai dari  4sin35ocos25o+4cos20osin10o=....4\sin35^o\cos25^o+4\cos20^o\sin10^o=....  

 31-\sqrt{3}-1  

 2-2  

 1-1  

 00  

 3+1\sqrt{3}+1  

4.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

 2sinxcos3x=.....2\sin x\cos3x=.....  

 cos4xcos2x\cos4x-\cos2x  

 cos4x+cos2x\cos4x+\cos2x  

 sin4x+sin2x\sin4x+\sin2x  

 sin4xsin2x\sin4x-\sin2x  

 sin2xsin4x\sin2x-\sin4x  

5.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

 2cos(x+π4)sin(xπ4)2\cos\left(x+\frac{\pi}{4}\right)\sin\left(x-\frac{\pi}{4}\right)  = .....

 sin2x+122\sin2x+\frac{1}{2}\sqrt{2}  

 sin2x122\sin2x-\frac{1}{2}\sqrt{2}  

 cos2x+122\cos2x+\frac{1}{2}\sqrt{2}  

 sin2x1\sin2x-1  

 cos2x1\cos2x-1  

6.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

 sin65osin5o\sin65^o\sin5^o  dapat disederhanakan menjadi ....

 12(cos70o12)\frac{1}{2}\left(\cos70^o-\frac{1}{2}\right)  

 12(12cos70o)\frac{1}{2}\left(\frac{1}{2}-\cos70^o\right)  

 12(sin70o123)\frac{1}{2}\left(\sin70^o-\frac{1}{2}\sqrt{3}\right)  

 12(123sin70o)\frac{1}{2}\left(\frac{1}{2}\sqrt{3}-\sin70^o\right)  

 cos70o12\cos70^o-\frac{1}{2}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Jika diketahui  cos20o=a\cos20^o=a  maka nilai dari  cos70ocos50o=....\cos70^o\cos50^o=....  

 12(12a)\frac{1}{2}\left(\frac{1}{2}-a\right)  

 12(a12)\frac{1}{2}\left(a-\frac{1}{2}\right)  

 12(a+12)\frac{1}{2}\left(a+\frac{1}{2}\right)  

 14(a12)\frac{1}{4}\left(a-\frac{1}{2}\right)  

 14(12a)\frac{1}{4}\left(\frac{1}{2}-a\right)  

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