Review of Trig. Functions

# Review of Trig. Functions - Review of Trig Functions...

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Unformatted text preview: Review of Trig. Functions Section A.3 900 180 − θ S 0 1800 θ All 00,3600 180 + θ 360 − 0 C T 180 + θ 360 − θ 0 0 2700 Arc length is s = rθ To change from degrees to radians π multiply by 180 0 To change from radians to degrees 0 multiply by 180 π Trig. Identities Review trig. identities on page A19. SOH – CAH – TOA sin θ + cos θ = 1 2 2 sin 2θ = 2 sin θ cos θ 2 cos 2θ = 2 cos θ − 1 2 = 1 − 2 sin θ = cos θ − sin θ 2 2 1 csc θ = sin θ 1 sec θ = cos θ 1 cot θ = tan θ sin θ tan θ = cos θ sin( −θ ) = − sin θ cos(−θ ) = cos θ tan(−θ ) = − tan θ Degrees 00 0 sin θ 0 cos θ 1 tan θ 0 Radians 300 π 6 1 2 cosθ sin 1 3 2 3 3 450 π 4 600 π 3 900 2 2 2 2 3 2 1 2 1 1 3 π 2 0 Und. ...
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Review of Trig. Functions - Review of Trig Functions...

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