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Name: Period: Accel. Pre-Calculus Unit 4B (Part 2) Packet Trigonometric ...

Accelerated Precalculus Name _____ 4.14 Quiz Review Do not use a calculator! Find the exact values using angle sum or difference identities. 1. sin 105° 2. tan (17𝜋 12) 3. cos 1005° 4. If sin θ = 12 13 and cos θ < 0, find tan 2θ. 5. If tan θ = − and sec θ > 0, find cos 2θ.