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Trigonomeetria 3

Authored by Larissa Sulina

Mathematics

10th - 12th Grade

Used 14+ times

Trigonomeetria 3
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30 questions

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1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 sin2x\sin2x  

 2cosxsinx2\cos x\sin x 

 2cos2x12\cos^2x-1  

 2sin2x12\sin^2x-1  

 2sinxcosx2\sin x\cos x 

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 cos2x\cos2x  

 cos2xsin2x\cos^2x-\sin^2x  

 2cos2x12\cos^2x-1  

 sin2xcos2x\sin^2x-\cos^2x  

 2sinxcosx2\sin x\cos x  

 12sin2x1-2\sin^2x  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 sin2xcos2x=\sin^2x-\cos^2x=  

 sin2x-\sin2x  

 sin2x\sin2x  

 cos2x\cos2x  

 cos2x-\cos2x  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 cos2xsin2x=\cos^2x-\sin^2x=  

 sin2x-\sin2x  

 sin2x\sin2x  

 cos2x\cos2x  

 cos2x-\cos2x  

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 cos2x\cos2x  

2sin2x12\sin^2x-1

2cos2x12\cos^2x-1

sin2xcos2x\sin^2x-\cos^2x

cos2xsin2x\cos^2x-\sin^2x

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

  sin5αcosαsinαcos5α\sin5\alpha\cdot\cos\alpha-\sin\alpha\cdot\cos5\alpha  

 sin6α\sin6\alpha  

 sin4α\sin4\alpha  

 cos4α\cos4\alpha  

 cos6α\cos6\alpha  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 tan42°+tan18°1tan420tan180=\frac{\tan42°+\tan18°}{1-\tan42^0\tan18^0}= 

 3\sqrt{3}  

 33\frac{\sqrt{3}}{3}  

 3-\sqrt{3}  

 33-\frac{\sqrt{3}}{3}  

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