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Formula Sheet

Inequalities — Formula Sheet

ICSE · Class 11 · Mathematics

11 formulas from Inequalities (ICSE Class 11 Mathematics) on one page, grouped by topic. Part of the ICSE Class 11 Mathematics syllabus.

58 questions36 flashcards11 formulas & key relations5 concepts

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An infographic classifying different types of inequalities based on variables, symbols, and degree, including numerical, literal, strict, slack, linear in one variable, linear in two variables, and qu
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11 Entries · 3 Sections

Formulas and Key Relations

Rules for Solving Inequalities

Add the same number to both sides

Subtract the same number from both sides

Multiply by a positive number

Multiply by a negative number

Divide by a positive number

Compound Inequalities

x > a and x < b => a < x < b

Absolute Value Inequalities

|x| = x if x ≥ 0; |x| = -x if x < 0

|x| < a iff -a < x < a

|x| ≤ a iff -a ≤ x ≤ a

|x| > a iff x < -a or x > a

|x| ≥ a iff x ≤ -a or x ≥ a

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Frequently Asked Questions

What are the important topics in Inequalities for ICSE Class 11 Mathematics?
Key topics in Inequalities include Basic Ideas and Types of Inequalities, Rules for Simplifying Inequalities, Linear Inequalities and Domain-Based Answers, Compound Inequalities. Study these first, then practise questions on each for Class 11 exams.
How many formulas are in Inequalities?
This sheet lists 11 formulas from Inequalities, grouped by topic. Learn what each symbol stands for so you can apply the formula, not just recall it.
How should I revise Inequalities for Class 11 exams?
Learn the core ideas first, then work through the 58 practice questions on Inequalities. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Inequalities

All ICSE Class 11 Mathematics Formula Sheet

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