Class 11 Mathematics

NCERT28 h of video

NCERT Mathematics, Textbook for Class XI (2022 rationalised revision, Reprint 2026-27)
कक्षा 11 की 1 videos हिंदी में भी · 1 in Hindi · All Hindi videos

14 chapters · 116 topics

01 Sets 11 topics · 2 h 02 Relations and Functions 7 topics · 2 h 03 Trigonometric Functions 11 topics · 2 h 04 Complex Numbers and Quadratic Equations 9 topics · 2 h 05 Linear Inequalities 5 topics · 1 h 06 Permutations and Combinations 7 topics · 1 h 07 Binomial Theorem 4 topics · 50 min 08 Sequences and Series 8 topics · 2 h 09 Straight Lines 9 topics · 2 h 10 Conic Sections 11 topics · 2 h 11 Introduction to Three Dimensional Geometry 4 topics · 50 min 12 Limits and Derivatives 12 topics · 3 h 13 Statistics 10 topics · 2 h 14 Probability 8 topics · 2 h

What Class 11 Mathematics covers

One thing each chapter sets out to make you able to do, in the order the book teaches them.

State the condition a collection must satisfy before it may be called a set, and apply it as a decision procedure rather than reciting itCh 1Sets
Explain why a two-element set cannot record which of its elements was chosen first, and produce a concrete pair of situations that the set notation confusesCh 2Relations and Functions
State what a rotation-based angle records that a corner-angle cannotCh 3Trigonometric Functions
State why x² = −1 has no solution among the real numbers, giving the sign argument rather than an appeal to a calculator or a graphCh 4Complex Numbers and Quadratic Equations
Give two situations that cannot be written as equations, and say what blocks the equality in eachCh 5Linear Inequalities
State the counting principle for two stages and for any finite number of stagesCh 6Permutations and Combinations
Write out the expansions of a two-term bracket for indices 0 to 4 and say what the page prints beside the zeroth one, and why that condition is thereCh 7Binomial Theorem
Distinguish the position number from the term standing at that position, and write both using the chapter's subscript notationCh 8Sequences and Series
State what the inclination of a line is, and give the closed range it lies inCh 9Straight Lines
Describe how the double-napped right circular cone is generated, and name the role of each of the two lines involvedCh 10Conic Sections
Explain why locating a fan tip or a hanging bulb inside a room takes three numbers rather than two, naming the room's floor and two adjacent walls as the three surfacesCh 11Introduction to Three Dimensional Geometry
State why an average velocity over an interval is computable and a velocity at an instant is not, in terms of what the quotient needsCh 12Limits and Derivatives
Compute the mean of each of the chapter's two ten-innings records and show that both come to 53Ch 13Statistics
State the chapter's definition of an event, and say why the word "any" in it cannot be weakenedCh 14Probability

Where students most often slip up

Sentences students actually say, one from each chapter, taken from the notes the videos were made from.

"A set has to be a collection of numbers."Ch 1Sets
"(a, b) is just another way of writing {a, b}."Ch 2Relations and Functions
"An angle cannot be more than 360°."Ch 3Trigonometric Functions
"There must be some real number that squares to −1; we just haven't found it."Ch 4Complex Numbers and Quadratic Equations
"≤ is just < being cautious."Ch 5Linear Inequalities
"Three pants and two shirts make five outfits."Ch 6Permutations and Combinations
"The coefficients are just a sequence to memorise."Ch 7Binomial Theorem
"If you cannot write a formula, it is not a sequence."Ch 8Sequences and Series
"Slope is defined as rise over run."Ch 9Straight Lines
"A circle is one of the ellipses."Ch 10Conic Sections
"Three planes always make eight pieces."Ch 11Introduction to Three Dimensional Geometry
"Average velocity over the last stretch just is the velocity at the end."Ch 12Limits and Derivatives
"Equal averages mean equal performance."Ch 13Statistics
"An event is one outcome."Ch 14Probability