Trigonometric Double Angle Identities Answers
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1
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If sin(x) = and cos(x) > 0, what is tan(2x)?
A
Option
B
Option
C
Option
D
Option
8
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What are the correct justifications, listed in proper order?
A
Double Angle Identity, Quotient Identity for Tangent, Simplify, Double Angle IdentityB
Double Angle Identity, Simplify, Double Angle Identity, Quotient Identity for TangentC
Double Angle Identity, Simplify, Quotient Identity for Tangent, Double Angle IdentityD
Double Angle Identity, Quotient Identity for Tangent, Double Angle Identity, Simplify12
If cos(x) = and tan(x) < 0, what is cos(2x)?
A
Negative StartFraction 3 StartRoot 7 EndRoot Over 8 EndFraction
B
Negative StartFraction 1 Over 8 EndFraction
C
StartFraction 1 Over 8 EndFraction
D
StartFraction 3 StartRoot 7 EndRoot Over 8 EndFraction
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