Calculus practice

L'Hopital's Rule worksheets

Evaluate indeterminate quotient limits with justified, repeated applications of L'Hopital's Rule.

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Confirm the indeterminate form before each use of L'Hopital's Rule, then give the exact limit, signed infinity, or DNE.

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Justify every application

The worked key records the original indeterminate form, differentiates numerator and denominator separately, and stops as soon as exact order or tail behavior settles the limit.

Learning objective

What this activity builds

Identify 0/0 or infinity/infinity, differentiate numerator and denominator separately, and resolve the exact terminal limit.

Worked example

What changes when L'Hopital's Rule applies?

Replace the quotient limit by the limit of f'(x)/g'(x).

Differentiate the numerator and denominator separately. Do not use the quotient rule.

Teaching notes

Make the practice count

  • Write the indeterminate form before applying the rule.
  • Check the form again before repeating the rule.
  • Keep one-sided signs when a residual power remains.

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Math SheetNameScoreTeacherDateL'Hopital's RuleConfirm the indeterminate form, differentiate numerator and denominator separately, and continue only while L'Hopital's Rule applies. Give an exactlimit, signed infinity, or DNE.1. exponential logarithmiclimx2ex-2-1-5·x-22Indeterminate form:Exact limit:2. polynomial trigonometriclimx2-6·sin4·x-26·x-22Indeterminate form:Exact limit:3. polynomiallimx4336·1-228·x+52·x2-4·x3-32·1+16·x-2·x2Indeterminate form:Exact limit:4. trigonometriclimx-4-3·sinx+43·1-cos2·x+4Indeterminate form:Exact limit:math-sheet.comPage 1 of 2
Math SheetNameScoreTeacherDateL'Hopital's RuleConfirm the indeterminate form, differentiate numerator and denominator separately, and continue only while L'Hopital's Rule applies. Give an exactlimit, signed infinity, or DNE.5. polynomiallimx+-x+3·x2-2·1+x+3·x3-5·x4Indeterminate form:Exact limit:6. trigonometriclimx0-4·tan4·xsin4·xIndeterminate form:Exact limit:7. exponential logarithmiclimx0--6·x3-4·e-3·x-1+3·xIndeterminate form:Exact limit:8. polynomial trigonometriclimx-3+-2·x+33-4·tanx+3Indeterminate form:Exact limit:math-sheet.comPage 2 of 2