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How to use the half angle formula to solve an equation

1,816 views · Published 4 February 2014 · 3:44 · Indexed 30 September 2026

Channel: Brian McLogan · 2014 · Education

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👉 Learn how to solve equations using half-angle identities. To do this we will replace every trig function with half angles using the identity. Then we will simplify and solve trigonometric functions. To find the values we will use the unit circle or calculator.

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Organized Videos:
✅ Half Angle Formulas
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMrThfrxrltuSDxZxP5APdbM
✅ Evaluate Half Angle Formulas of and Angle
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMrV5qtYaqx4qC7Hoe2nr8K3
✅ Evaluate Half Angle Formulas from a triangle
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMp7ptYJNQcDrtyRiWDnIpQY
✅ Write the Expression as a single function | Half Angle Formulas
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMovEYAsvjLCo8lYBrBJcc7T
✅ Solve Equations using Half Angle Formulas
https://www.youtube.com/playlist?list=PL0G-Nd0V5ZMpwkFkUFvDSo7L2KPqsW18f

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