McGill University · MATH 139

McGill MATH 139 tutoring

Calculus 1 with Precalculus: send your chapter so we can check whether we can help before you book.

Online 60 min: $55 CAD · Pricing Refresher study Try a free practice question Free study guide for MATH 139

Not offered in 2026–27

Course overview

McGill MATH 139 combines trigonometry and precalculus review with limits, continuity, derivatives, antiderivatives and applications. McGill’s departmental listing says it is not offered this catalogue year. You can use this guide for review and ask Nablio whether tutoring is available.

McGill’s departmental listing says this course is not offered this catalogue year. Historical or refresher tutoring may be available by request; future course offerings must be checked with McGill.

MATH 139 topics to review

Trigonometry reviewPrecalculus reviewLimits and continuityDerivativesAntidifferentiationApplications of calculus

Common difficulties

Simplifying a fraction within a limit
Connecting function graphs and symbolic manipulation

Preparing for this course

Revisit arithmetic, equation solving, functions and trigonometry. Separate an algebra difficulty from a new calculus concept.

Registration requirements

Confirm the appropriate entry route and any future offering with McGill; this course is not currently offered according to the departmental listing.

Check the official course catalogue

Cancel a factor without restoring an excluded input

For a real input $x$ , simplify $\frac{x^2-9}{x-3}$ and state which input value must remain excluded from its domain.

Show the reasoning

The denominator is zero at $x=3$ , so first require $x\ne3$ . Factor the difference of squares: $x^2-9=(x-3)(x+3)$ . For the allowed inputs only, divide numerator and denominator by the nonzero factor $x-3$ . The result is $x+3$ , still with $x\ne3$ .

Next: distinguish a limit from a function value

The expression above remains undefined at $x=3$ , even though its values approach $6$ as $x$ approaches $3$ . Continue with the domain-and-limits lesson: explain what nearby inputs tell you, then try its independent question before opening the answer. Use this as a historical-course or precalculus refresher.

Work through the limit-versus-value check

How tutoring can help

Your tutor can use your attempted limit or derivative to identify whether the obstacle is an algebraic prerequisite or the calculus concept itself. You can revisit the needed prerequisite through a short example, then return to the original problem with guidance.

Refresher study for MATH 139

For refresher study, practise explaining limits and derivatives in words as well as symbols.

Choose the topics you want to revisit. We work through permitted practice and comparable problems, without completing graded assignments or exams on your behalf.

Independent practice

Free practice and study guides for MATH 139

30 min

Before Calculus: 10 Algebra Skills You Should Know

Ten essential algebra skills with worked examples, common mistakes and self-checks: a practical starting point before university or CEGEP calculus.

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MATH 139 · official course reference