Trigonometry practice, graded like a real exam
Triangles, the unit circle, identities and periodic functions. Trigonometry rewards precision and repetition more than almost anything else on a geometry & trigonometry course — it is exactly the kind of topic where working through twenty varied problems beats re-reading the chapter a third time. QED gives you an endless supply of exam-grade trigonometry questions and marks every answer the way an examiner would, so each attempt actually teaches you something.
✓ First questions free · no card · no personal data stored
What a Trigonometry question looks like
In a QED session, an exam-level trigonometry question might ask you to work through trigonometry problems at exam standard and get marked step by step.
Every question carries a hidden marking rubric. You answer in real notation, and QED marks each criterion separately — awarding partial credit and showing a full worked solution, so you learn from the marks you dropped.
Every Trigonometry subtopic
13 focused guides, each with the method, a worked example and the mistakes that cost marks. Work through them in order or jump to your weak spot.
- 1Right-triangle ratios: sin, cos & tan
- 2The unit circle & exact values
- 3Radians, degrees & arc length
- 4Graphs of sin, cos & tan
- 5Pythagorean & reciprocal identities
- 6Angle-sum, difference & double-angle formulas
- 7Solving trigonometric equations
- 8The sine rule & the cosine rule
- 9Triangle area, sectors & segments
- 10Inverse trigonometric functions
- 11Proving trigonometric identities
- 12Polar coordinates & converting to Cartesian
- 13Modelling periodic phenomena with sinusoids
Why students use QED for Trigonometry
Not another chatbot that blesses whatever you type. QED is built for deliberate practice — the way maths actually sticks.
Practice that never runs out
A textbook gives you a handful of trigonometry exercises with the same worked answers everyone has seen. QED generates unlimited fresh trigonometry questions at warm-up, exam and challenge level, so you can drill a weak spot until it is automatic — not until you run out of problems.
Marked like an examiner, not a checkbox
Most tools just say “correct” or “wrong”. QED marks your trigonometry answer against a point-by-point rubric, awards partial credit, shows exactly where the reasoning slipped, and gives a full model solution. A right answer with the wrong argument still loses the argument marks — just like a real exam.
A library you can come back to
Every trigonometry question you generate is saved, organised and re-takeable as a timed exam. Your mastery is tracked per topic, so you always know whether Trigonometry is exam-ready or still needs work — and you can export any question or exam report to PDF.
Write maths the way you actually write it
Answer in real notation with a one-tap symbol palette and a visual equation editor, drop in truth tables, or photograph a handwritten page — QED converts your handwriting to clean LaTeX. No fighting with syntax to show what you know.
How practising Trigonometry works
- Generate a fresh questionPick Trigonometry and a difficulty — warm-up to build intuition, exam level for the real thing, or challenge for multi-step problems. A new, verified question appears in seconds.
- Answer in real notationType it, build it in the equation editor, lay out a truth table, or photograph your handwritten working and let QED convert it to LaTeX.
- Get marked criterion by criterionQED scores every rubric point separately, awards partial credit, flags where the reasoning slipped and shows a full model solution. The question is saved to your library to retake any time.
Related topics
Building a full picture of geometry & trigonometry? These pair naturally with Trigonometry.
Trigonometry — frequently asked questions
Is QED good for revising Trigonometry before an exam?
Yes — that is exactly what it is built for. Generate trigonometry questions at exam level (or push up to challenge), answer them under timed exam mode, and get marked against a rubric with a full model solution. You can retake any question and watch your Trigonometry mastery climb until it is solid.
How many Trigonometry questions can I practise?
As many as you like. QED generates fresh trigonometry problems on demand instead of recycling a fixed set, and every question you make is saved to your library to retake for free. New accounts start with free question generations, no card required.
Do I need to know LaTeX to answer Trigonometry questions?
No. There is a one-tap palette for symbols, a visual equation editor, and a truth-table builder — and you can photograph a handwritten solution and let QED convert it to LaTeX for you. You concentrate on the maths, not the typesetting.
Ready to make Trigonometry exam-proof?
Generate your first trigonometry questions free — no card, no setup, no personal data stored. Practise until it is second nature.
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