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Concise notes, key facts, worked examples and common mistakes.
International · A Level · Cambridge International
A course-aware revision pathway with source metadata, topic map, paper/test structure, approved original practice, flashcards, AI tutor handoff and Battle Mode connection. This route is labelled Fully covered after passing the StudyVector depth gate.
Concise notes, key facts, worked examples and common mistakes.
Original questions mapped to topic, subtopic, skill and provider.
Active recall decks for formulas, facts, vocabulary and practicals.
Energy earned only from real revision progress and mistake repair.
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Smaller learning blocks for repair and review.
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Practice targets used by diagnostics and tutor handoff.
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25 min · 10 energyflashcardsSpaced recall keeps today's work from fading before the next session.
9 min · 4 energyexam modeTimed practice turns understanding into exam/test readiness.
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8 min · 3 energyCambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Cambridge International A Level Mathematics
Find dy/dx for y = (2x + 1)^5.
Source type: original · Review status: approved
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Last checked 2026-04-29. Internal original mapping; not copied from paid platforms or official papers.
These previews come from the first-party course map and approved question registry. Fully covered means the public route has topic depth, skills, objectives, worked examples and mistake repair attached before students enter full practice.
Exam-style application
What to know
Common mistake
Answering from memory without using the question context.
Worked example
A Core specification map question gives a graph, equation and context. What should the first working line do?
Core specification map exam practice
What to know
Common mistake
Starting with a memorised method before checking what the question asks for.
Worked example
A Core specification map question gives a graph, equation and context. What should the first working line do?
Algebraic methods and proof
What to know
Common mistake
Starting with a memorised method before checking what the question asks for.
Worked example
A Pure algebra and functions question gives a graph, equation and context. What should the first working line do?
1. What skill does the approved sample question test?
maths
Use the chain rule. Let u = 2x + 1, so y = u^5 and du/dx = 2. Then dy/dx = 5u^4 * du/dx = 5(2x + 1)^4 * 2 = 10(2x + 1)^4.
2. What mistake should you watch for in Exam-style application?
Answering from memory without using the question context.
StudyVector stores common mistake patterns so the next attempt can repair the specific error rather than restart the whole course.
3. What should happen after a missed point?
Review the explanation, name the mistake, then answer a similar question while the correction is fresh.
The page feeds the same loop as practice: attempt, feedback, repair, and return.