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Identities

Page history last edited by PBworks 17 years, 10 months ago

Learning Objectives

 

Problem 1 of 3

 

Prove the identity:

 

Solution

 

 

Problem 2 of 3

 

If sin θ = (4/5) and sec θ < 0 find the exact value of:

 

(a) tan 2θ

 

 

(b) sin 2θ

 

 

Solution

 

Problem 3 of 3

 

Find the exact value of:

 

(a) cos (11π/12)

 

(b) sec (11π/12)

 

Solution

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