Inequation A statement involving variables and the sign of inequality viz. >, <, ≥ or ≤ is called an inequation or an inequality. Numerical Inequalities Inequalities which do not contain any variable is called numerical inequalities, e.g. 3 < 7, 2 ≥ -1, etc. Literal Inequalities Inequalities which contains variables are called literal inequalities e.g. […]

# CBSE Class 11 Sample Papers, Syllabus, Test Papers & NCERT Solutions

## CBSE Class 11 Maths Chapter 5 Complex Numbers and Quadratic Equations Notes

Imaginary Numbers The square root of a negative real number is called an imaginary number, e.g. √-2, √-5 etc. The quantity √-1 is an imaginary unit and it is denoted by ‘i’ called Iota. Integral Power of IOTA (i) i = √-1, i2 = -1, i3 = -i, i4 = 1 So, i4n+1 = i, i4n+2 = -1, i4n+3 = -i, […]

## CBSE Class 11 Maths Chapter 4 Principle of Mathematical Induction Notes

Principle of Mathematical Induction Mathematical induction is one of the techniques, which can be used to prove a variety of mathematical statements which are formulated in terms of n, where n is a positive integer. Let P(n) be given statement involving the natural number n such that (i) The statement is true for n = […]

## CBSE Class 11 Maths Chapter 3 Trigonometric Functions Notes

Angle Angle is a measure of rotation of a given ray about its initial point. The original ray is called the initial side and the final position of ray after rotation is called terminal side of the angle. The point of rotation is called vertex. If the direction of rotation is anti-clockwise, the angle is […]

## CBSE Class 11 Maths Chapter 2 Relations and Functions Notes

Ordered Pair An ordered pair consists of two objects or elements in a given fixed order. Equality of Two Ordered Pairs Two ordered pairs (a, b) and (c, d) are equal if a = c and b = d. Cartesian Product of Two Sets For any two non-empty sets A and B, the set of […]

## CBSE Class 11 Maths Chapter 1 Sets Notes

Set A set is a well-defined collection of objects. Representation of Sets There are two methods of representing a set Roster or Tabular form In the roster form, we list all the members of the set within braces { } and separate by commas. Set-builder form In the set-builder form, we list the property or […]

## Class 11th Maths Formulas

Chapter 1 – Sets Chapter 2 – Relations and Functions Chapter 3 – Trigonometric Functions Chapter 4 – Principle of Mathematical Induction Chapter 5 – Complex Numbers and Quadratic Equations Chapter 6 – Linear Inequalities Chapter 7 – Permutations and Combinations Chapter 8 – Binomial Theorem Chapter 9 – Sequences and Series Chapter 10 – […]

## Download Accounts CBSE Class 11 Sample Papers

Accounts Class 11th Solved Sample Papers Solved Sample Paper Set 1 Solved Sample Paper Set 2 Solved Sample Paper Set 3 Biology Class 11th Unsolved Sample Papers Unsolved Sample Paper 1 Unsolved Sample Paper 2 Unsolved Sample Paper 3 Unsolved Sample Paper 4 Unsolved Sample […]

## Chemistry Class 11 MCQs

Some Basic Concepts Of Chemistry Structure Of Atom Classification Of Elements And Periodicity In Properties Chemical Bonding And Molecular Structure States Of Matter Thermodynamics Equilibrium Redox Reactions Hydrogen The S-Block Elements The P-Block Elements Organic Chemistry Hydrocarbons Environmental Chemistry