Prove the following identities. a. b. c. d. (2 cos ) 4 sin =
Question:
Prove the following identities.
a.
b.
c.
d. (2 − cos² θ)² − 4 sin² θ = cos4 θ.
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Answera Starting with the righthand side of the equation sin21 sin2 We can begin by multiplying the ...View the full answer
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Related Book For 
Complete Pure Mathematics 1 For Cambridge International AS & A Level
ISBN: 9780198427438
2nd Edition
Authors: Jean Linsky, Brian Western, James Nicholson
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