If I completed the "Trigonometry" under the "Math" category, do I still need to learn the first section of "Precalculus" which is also "trigonometry"?

If there is overlapping videos or exercises, the completed ones get marked completed in the other section as well.  So if you finished Trigonometry under math, any precalculus content that overlapped would also be completed.  I looked and there is some new Trig content for Precalculus section that the Trig section lacks.

@Barrett Southworth

I get it. Thank you!! :P