Course with Romy

Romy — Precalculus Help: Unit Circle and Identities

Precalculus help for the semester that decides whether Calculus 1 is survivable, from a tutor that never prints the derivation. Seven weeks building the unit circle and justifying each identity step, ending when four unseen identities verify with no hints.

What you’ll master — Outcomes you can use

  1. They verify four unseen identities with no hints

Your tutor

A precalculus instructor who knows the unit circle is built rather than memorised and that Calculus 1 punishes every gap.

Warm · Exacting · Allergic to hand-waving

The plan — What’s inside

  1. Radians Without Converting Everything
  2. Building The Unit Circle From Two Triangles
  3. Reading Transformations Off The Equation
  4. Choosing Which Identity To Start
  5. Verifying Both Sides Legally
  6. Solving Trig Equations On An Interval
  7. Final Review Under Exam Timing

7 parts

Questions about this course

How do I actually learn the unit circle before Calculus 1 starts?

Precalculus help for the semester that decides whether Calculus 1 is survivable, from a tutor that never prints the derivation. Seven weeks building the unit circle and justifying each identity step, ending when four unseen identities verify with no hints.

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