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Proving Trig Identities

Authored by Karen Herman

Mathematics

11th Grade

CCSS covered

Used 12+ times

Proving Trig Identities
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10 questions

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1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

 1cos2x is equivalent to?1-\cos^2x\ is\ equivalent\ to?  

 sin2x\sin^2x  

 (1cosx)(1+cosx)\left(1-\cos x\right)\left(1+\cos x\right)  

 sinx\sin x  

 cosx\cos x  

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

tanθ=

1/tanθ
1/sinθ=
1/cscθ=
1/cotθ=

Tags

CCSS.HSF.TF.A.4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify:  tanxcotx-cos2x

tanx
cotx
sin2x
cos2x

Tags

CCSS.HSF.TF.C.8

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Is this a pythagorean identity?
tan2x + 1 = secx

Yes
No

Tags

CCSS.HSF.TF.C.8

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify this to a basic trigonometry function:
tan(x)csc(x) 

tanx
secx
cotx
cscx

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

tan x =

sinx/cos x

cosx/sinx

1/cotx

sec2x

Tags

CCSS.HSF.TF.C.8

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

cos x =

sin x

sin2x-1

1/sec x

1/csc x

Tags

CCSS.HSF.TF.A.4

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