Trigonometry came first thousands of years ago. Calculus was only discovered several hundered years ago.
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It is certainly used in calculus, just as calculus can be used in trigonometry.
Generally pre-calculus is taken after trigonometry, unless the trigonometry course was supplemented by a pre-calculus course, in which case the next course would be calculus.
Trigonometry is engineering math, but If you are going to study something in physics, or science, (basically this is "applied science"), you will need lots of calculus. calculus appears a lot in "Stargate".
geometry, Algebra , trigonometry calculus, physics
Algebra, Trigonometry, Calculus, Geometry.