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Grade 12 · Math · Calculus

12th grade Limits with absolute value and trig worksheet

6 printable versionsChallenge Me10 questions · answer keyFree · no account

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Limits with absolute value and trig

Grade 12 Math Worksheet - Challenge Me

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Circle the best answer, or write your answer on the line.

  1. Ari wants the limit of sin(x − 4)/(x² − 16) as x → 4. Direct substitution fails. What is the limit?

  2. Bo wants the limit of sin(x − 5)/(x² − 25) as x → 5. Direct substitution fails. What is the limit?

  3. Esme wants the limit of sin(x − 7)/(x² − 49) as x → 7. Direct substitution fails. What is the limit?

  4. Jun wants the limit of sin(x − 9)/(x² − 81) as x → 9. Direct substitution fails. What is the limit?

  5. Kira wants the limit of sin(4x)/(x² + 5x) as x → 0. What is it?

  6. Luz wants the limit of sin(6x)/(x² + 7x) as x → 0. What is it?

  7. Milo wants the limit of sin(2x)/(x² + 9x) as x → 0. What is it?

  8. Noah wants the limit of sin(10x)/(x² + 3x) as x → 0. What is it?

  9. Pia looks at x² sin(2/x) as x shrinks toward zero, where the inside 2/x grows without bound. What is its limit?

    • does not exist
    • 1
    • 0
  10. Tala looks at sin(2/x) as x shrinks toward zero, where the inside 2/x grows without bound. What is its limit?

    • does not exist
    • 0
    • 1
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12th grade Limits with absolute value and trig worksheet – printable
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About this worksheet

Limits with absolute value and trig. Every version has 10 questions, and the answer key prints on the second page.

What your child will learn

  • I can use sin u/u → 1 and tan u/u → 1 by matching the inside.
  • I can find one-sided and two-sided limits with absolute values.
  • I can use the squeeze theorem, and tell when a swinging function has no limit.

Standard: none (beyond CCSS)

Words to know

sin u/u → 1: As u shrinks to 0, sin u and u become almost equal.

squeeze theorem: If f is trapped between two functions that meet, f meets them too.

Common mistakes

Used sin u/u → 1 without matching the inside. sin(3x)/x needs a 3x on the bottom, so it heads to 3.

Flipped the two numbers. The number inside the top's function goes on top.

Treated |x − 2| as x − 2 on the left, where x − 2 is negative. Left of 2, |x − 2| = −(x − 2).

Questions parents ask

What is the most common mistake with limits with absolute value and trig?

Used sin u/u → 1 without matching the inside. sin(3x)/x needs a 3x on the bottom, so it heads to 3.

Are these 12th grade math worksheets free to print?

Yes. All 6 printable versions at each level are free to print, with the answer key, and no account is needed.

More calculus

See all Calculus

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