Error message

  • Deprecated function: Methods with the same name as their class will not be constructors in a future version of PHP; ctools_context has a deprecated constructor in require_once() (line 127 of /home/tusa/public_html/sites/all/modules/ctools/ctools.module).
  • Deprecated function: Methods with the same name as their class will not be constructors in a future version of PHP; ctools_context_required has a deprecated constructor in require_once() (line 127 of /home/tusa/public_html/sites/all/modules/ctools/ctools.module).
  • Deprecated function: Methods with the same name as their class will not be constructors in a future version of PHP; ctools_context_optional has a deprecated constructor in require_once() (line 127 of /home/tusa/public_html/sites/all/modules/ctools/ctools.module).
  • Deprecated function: Methods with the same name as their class will not be constructors in a future version of PHP; panels_cache_object has a deprecated constructor in require_once() (line 127 of /home/tusa/public_html/sites/all/modules/ctools/ctools.module).

Trigonometric Equations - Basic Examples

Video Lesson (Trigonometry)

 Video Tutorial: Trigonometric Equations - Basic Examples


This free trigonometry video tutorial lesson provides a few different examples on solving trigonometric equations.

Sample problem:

Solve over the interval [0, 2π]

2cosx - 1 = 0