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5.4 Multiple Angle Identities

5.4 Multiple Angle Identities

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Tutorial

PreCalculus - Trigonometry: Trig Identities (30 of 57) Proof sin^2(x)=(1-cos2x)/2, by Michel van Biezen

Source: Michel van Biezen at YouTube: https://www.youtube.com/watch?v=ousK8JCaBfg

PreCalculus - Trigonometry: Trig Identities (31 of 57) Proof cos^2(x)=(1+cos2x)/2, by Michel van Biezen

Source: Michel van Biezen at YouTube: https://www.youtube.com/watch?v=asolDkbRe-o

PreCalculus - Trigonometry: Trig Identities (29 of 57) Formula for Lowering Power tan^2(x)=?, by Michel van Biezen

Source: Michel van Biezen at YouTube: https://www.youtube.com/watch?v=MV985abSXX8

PreCalculus - Trigonometry: Trig Identities (32 of 57) Proof Half Angle Formula: sin(x/2), by Michel van Biezen

Source: Michel van Biezen at YouTube: https://www.youtube.com/watch?v=iSEvUobTLOw

PreCalculus - Trigonometry: Trig Identities (33 of 57) Proof Half Angle Formula: cos(x/2), by Michel van Biezen

Source: Michel van Biezen at YouTube: https://www.youtube.com/watch?v=N35HLQOgSBo

PreCalculus - Trigonometry: Trig Identities (34 of 57) Proof Half Angle Formula: tan(x/2), by Michel van Biezen

Source: Michel van Biezen at YouTube: https://www.youtube.com/watch?v=Ig9kscPBKQw

Power Reducing Trig Identities, by MATH OMG

Source: MATH OMG at YouTube: https://www.youtube.com/watch?v=O5ZonKunOBI

Trigonometry Equations : Double Angle Types (1), by ExamSolutions

Source: ExamSolutions at YouTube: https://www.youtube.com/watch?v=H-jwZdfzpfM

Trigonometry Equations : Double Angle Types (2), by ExamSolutions

Source: ExamSolutions at YouTube: https://www.youtube.com/watch?v=yFWlxK4_AKE

Trigonometry Equations : Double Angle Types (3), by ExamSolutions

Source: ExamSolutions at YouTube: https://www.youtube.com/watch?v=Hb85hsPlbes

Master Solving a trigonometric equation using double angle formulas, by Brian McLogan

Source: Brian McLogan at YouTube: https://www.youtube.com/watch?v=a5Fos1w2U2I

Using half angle formulas to solve trigonometric equations, by Brian McLogan

Source: Brian McLogan at YouTube: https://www.youtube.com/watch?v=vzEXjSiF3oU

How to use the half angle formula to solve an equation, by Brian McLogan

Source: Brian McLogan at YouTube: https://www.youtube.com/watch?v=jo6IPiv8fsw