Mathematics - Additional - 0606 CIE

Modulus Inequalities

Muhtasari

A modulus inequality asks not for an exact distance from zero, but for a range of distances: which values lie within a certain reach, or beyond it. The answer is always an interval or a pair of intervals, and once you see the distance picture, deciding which is effortless.

In this lesson you will solve \(|x|c\), then extend to expressions like \(|ax+b|

Malengo

  1. Solve, graphically or algebraically, inequalities involving the modulus, such as k|ax + b| > c and k|ax + b| <= |cx + d|.

Maelezo ya Somo

Real limits are usually ranges, not single values: stay within a tolerance, keep above a threshold, remain inside a safe band. Modulus inequalities are the precise way to describe these, and they connect directly to the interval answers you met when solving quadratic inequalities.

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Tathmini ya Somo

Hongera kwa kukamilisha somo la Modulus Inequalities. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.

Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.

Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.

  1. Solve |x - 3| < 2. A. x < 1 or x > 5 B. 1 < x < 5 C. -5 < x < -1 D. x < 5 Answer: B
  2. The inequality |x| > c (c > 0) is equivalent to: A. -c < x < c B. x < -c or x > c C. x > c only D. x < c Answer: B
  3. Solve |2x - 1| > 5. A. -2 < x < 3 B. x < -2 or x > 3 C. x > 3 only D. -3 < x < 2 Answer: B
  4. Solve 3|x + 1| < 12. A. -5 < x < 3 B. x < -5 or x > 3 C. -4 < x < 4 D. -3 < x < 5 Answer: A
  5. Which is a valid way to write the solution of |x| > 4? A. -4 > x > 4 B. x < -4 or x > 4 C. -4 < x < 4 D. x = 4 Answer: B

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Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.

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Soma bila mtandao, wakati wowote, mahali popote
Inapatikana kwa Android, Windows, macOS, na Linux

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