Trig Identities (part 3)

Trig Identities (part 3)

10th - 12th Grade

12 Qs

quiz-placeholder

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Trig Identities (part 3)

Trig Identities (part 3)

Assessment

Quiz

Mathematics

10th - 12th Grade

Hard

Created by

Katherine Robertson

Used 4+ times

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12 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 cos2x4cosx2=\frac{\cos^2x-4}{\cos x-2}=  

 cosx2\cos x-2  

 cosx+2\cos x+2  

 secx2\sec x-2  

 secx+2\sec x+2  

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 cos2x1sinx=\frac{\cos^2x}{1-\sin x}=  

 cos2xcotx\cos^2x-\cot x  

 sinx\sin x  

 1+sinx1+\sin x  

 1cosx1-\cos x  

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 cot2xcot2xcos2x=\cot^2x-\cot^2x\cos^2x=  

 1cos2x1-\cos^2x  

 cos2x\cos^2x  

 cot2x\cot^2x  

 sin2x\sin^2x  

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 tan4x+2tan2x+1=\tan^4x+2\tan^2x+1=  

 sec2x\sec^2x  

 sec4x\sec^4x  

 csc2x\csc^2x  

 csc4x\csc^4x  

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 sin4xcos4x=\sin^4x-\cos^4x=  

 sin2xcos2x\sin^2x-\cos^2x  

 sinxcosx\sin x-\cos x  

 11  

 sinx+cosx\sin x+\cos x  

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 csc3xcsc2xcscx+1=\csc^3x-\csc^2x-\csc x+1=  

 cot2x(cscx1)\cot^2x\left(\csc x-1\right)  

 csc2x(cscx1)\csc^2x\left(\csc x-1\right)  

 csc2x(cscx+1)\csc^2x\left(\csc x+1\right)  

 cot2x(cscx+1)\cot^2x\left(\csc x+1\right)  

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

 sec4xtan4x=\sec^4x-\tan^4x=  
hint:  difference of squares

 11  

 sec2x+tan2x\sec^2x+\tan^2x  

 1-1  

 sec2xtan2x\sec^2x-\tan^2x  

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