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5. TRIGNOMETRIC IDENTITIES

Authored by NOUSHEEN SHAFY

Mathematics

11th Grade

Used 2+ times

5. TRIGNOMETRIC IDENTITIES
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5 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 Cos2θ=Cos2θ=  

 2sinθcosθ2\sinθ\cosθ  

 2sinθ2\sinθ  

 2cosθ2\cosθ  

None

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 cos (α  β)\cos\ \left(\alpha\ -\ \beta\right)  =

 cosαcosβ + sinαsinβ\cos\alpha\cos\beta\ +\ \sin\alpha\sin\beta  

 cosαcosβ  sinαsinβ\cos\alpha\cos\beta\ -\ \sin\alpha\sin\beta  

 sinαcosβ + cosαsinβ\sin\alpha\cos\beta\ +\ \cos\alpha\sin\beta  

 sinαcosβ  cosαsinβ\sin\alpha\cos\beta\ -\ \cos\alpha\sin\beta  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 sin (α  β)\sin\ \left(\alpha\ -\ \beta\right)  =

 cosαcosβ + sinαsinβ\cos\alpha\cos\beta\ +\ \sin\alpha\sin\beta  

 cosαcosβ  sinαsinβ\cos\alpha\cos\beta\ -\ \sin\alpha\sin\beta  

 sinαcosβ + cosαsinβ\sin\alpha\cos\beta\ +\ \cos\alpha\sin\beta  

 sinαcosβ  cosαsinβ\sin\alpha\cos\beta\ -\ \cos\alpha\sin\beta  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 cos (α +β)\cos\ \left(\alpha\ +\beta\right)  =

 cosαcosβ + sinαsinβ\cos\alpha\cos\beta\ +\ \sin\alpha\sin\beta  

 cosαcosβ  sinαsinβ\cos\alpha\cos\beta\ -\ \sin\alpha\sin\beta  

 sinαcosβ + cosαsinβ\sin\alpha\cos\beta\ +\ \cos\alpha\sin\beta  

 sinαcosβ  cosαsinβ\sin\alpha\cos\beta\ -\ \cos\alpha\sin\beta  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 sin (α +β)\sin\ \left(\alpha\ +\beta\right)  =

 cosαcosβ + sinαsinβ\cos\alpha\cos\beta\ +\ \sin\alpha\sin\beta  

 cosαcosβ  sinαsinβ\cos\alpha\cos\beta\ -\ \sin\alpha\sin\beta  

 sinαcosβ + cosαsinβ\sin\alpha\cos\beta\ +\ \cos\alpha\sin\beta  

 sinαcosβ  cosαsinβ\sin\alpha\cos\beta\ -\ \cos\alpha\sin\beta  

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