Is trigonometry required for calculus

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Discussion Overview

The discussion centers on the necessity of trigonometry for understanding calculus. Participants explore whether a foundational knowledge of trigonometric concepts is essential or if a basic grasp suffices for calculus studies.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant notes that while a basic understanding of sine and cosine is helpful, most trigonometry is not used in calculus.
  • Another participant argues that it is difficult to avoid trigonometry when engaging with calculus topics.
  • A later reply supports the idea that knowledge of trigonometric functions and identities is necessary, emphasizing the importance of specific identities like \(\cos^2(x)+\sin^2(x)=1\) and \(2\cos(x)\sin(x)=\sin(2x)\).
  • Some participants suggest that certain trigonometric formulas related to triangles, such as sohcahtoa or the cosine rule, are less critical for calculus.

Areas of Agreement / Disagreement

Participants express mixed views on the extent to which trigonometry is required for calculus, with some asserting its necessity and others downplaying its importance. No consensus is reached on the exact level of trigonometric knowledge needed.

Contextual Notes

Participants do not clarify specific prerequisites for calculus or the contexts in which trigonometry may be more or less relevant.

NewTrino
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Hello, I've recently been reading "Calculus made Easy" and realized that I've completely skipped over learning trigonometry. After the class I was taking (seventh grade advanced math, sadly) became completely insufficient for my desire to learn. I picked up the book at the local library, unfortunately forgetting about trigonometry until I ran into sine and cosine references. So I was wondering if knowing trigonometry is required for calculus or if I should just get the basic grasp on it.
 
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It's helpful to have a basic sense of what the sine and cosine represent. Most of trigonometry isn't used for calculus, though.
 
For better or worse if you are going to anything with calculus, it is hard to avoid trigonometry.
 
mathman said:
For better or worse if you are going to anything with calculus, it is hard to avoid trigonometry.

Never mind what I said earlier. This guy's right.
 
You'll need to know about sines, cosines, tangents, etc. You'll absolutely need to know about identities with those things. Identities like \cos^2(x)+\sin^2(x)=1 or 2\cos(x)\sin(x)=\sin(2x) are important.

Less important are the triangle-thingies. Formulas like sohcahtoa or the cosine rule are not so prevalent.
 

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