Fix: Update sin(), cos(), and tan() docs to respect angleMode() & cl…

[VANSH3104]

Resolves #7562
This PR updates the documentation for trigonometric functions (sin(), cos(), tan()) and the arc() function to correctly reflect their behavior with angleMode().
Changes:

Changes Made:
✅ Updated sin(), cos(), and tan() docs to specify that they respect angleMode(DEGREES).
✅ Clarified that arc() uses both radians and degrees depending on angleMode().
✅ Ensured consistency in documentation for trigonometric functions.

Screenshots of the change:

PR Checklist

• npm run lint passes
• Inline reference is included / updated
• Unit tests are included / updated

[worthant]

Nice job 👍

[ksen0]

Hi @VANSH3104, thanks for putting this together.

Just one small bit of feedback in terms of phrasing:

• Currently: "in radians by default or degrees if angleMode(DEGREES) is set."
• Suggested: "in radians by default, or according to angleMode() setting (RADIANS or DEGREES)"

In the original issue, @davepagurek also mentions:

So to complicate things a little bit: we currently are close to a release for p5 2.0, and development for that is in the dev-2.0 branch. We'd like to fix this forward for 2.0, but also it would be good to keep the 1.x docs up to date too. So potentially we could have two PRs, one for each branch?

Could you please (1) update this PR with the phrasing suggestion and also (2) make an additional PR please for the dev-2.0 branch as well? Thank you!

[VANSH3104]

@ksen0 sure i will do it

[VANSH3104]

@ksen0 I have done everything you told me and also improved the commit history.