NCERT NCERT Book PDF Class 11 Maths Chapter 5 Linear Inequalities

Download the Class 11 Maths Chapter 5 Linear Inequalities NCERT Book PDF, the official 2026-27 NCERT textbook chapter. It moves from equations to inequalities and shows how to solve and represent them, a base skill for the Boards, JEE Main, JEE Advanced and CUET.

• Official NCERT 2026-27 chapter, clean and print-ready.
• Covers linear inequalities in one variable and their graphs on the number line.
• Read it alongside the solved exercises and the revision notes linked below.

This Class 11 Maths Chapter 5 Linear Inequalities NCERT Book PDF is the official 2026-27 NCERT text, checked page by page against the latest edition.

What Class 11 Maths Chapter 5 Linear Inequalities Covers

The chapter explains what an inequality is, the rules for handling it, and how to solve a linear inequality in one variable and show its solution on the number line. The official NCERT sections are listed below.

Key Concepts You Will Study

Students should read the chapter with a pen and note each rule as it appears. The ideas are short but return in linear programming and optimisation.

• The meaning of strict and slack inequalities and how they differ from equations.
• The rules for adding, subtracting, multiplying and dividing an inequality.
• Why the sign reverses when multiplying or dividing by a negative number.
• Solving a linear inequality in one variable step by step.
• Showing the solution set on the number line using open and closed circles.

Why Download the NCERT Book PDF for This Chapter

The NCERT textbook is the single most important source for the CBSE exam, and most JEE and CUET questions from this chapter are built directly on its rules and examples.

• Every Board question on solving inequalities comes from this text or its exercises.
• The worked examples show the correct way to represent the solution set.
• Reading offline from the PDF avoids missing any small sign rule.

How to Use the NCERT Book PDF for Linear Inequalities

Read the chapter once fully, then work through it a second time with the exercises open. A short, ordered plan keeps the sign rules from slipping.

• Read each section, then write its rule in your own words in a single line.
• Practise flipping the sign whenever you multiply or divide by a negative number.
• Solve the in-text examples before looking at the given solution.
• Attempt the back exercises, then check them against the NCERT Solutions below.

Other Class 11 Maths Linear Inequalities Resources

Pair the textbook PDF with the solved answers, revision notes and formula sheet for the same chapter.

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