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

Chapter 1 – Sets Class 11 Notes Chapter 2 – Relations and Functions Class 11 Notes Chapter 3 – Trigonometric Functions Class 11 Notes Chapter 4 – Principle of Mathematical Induction Class 11 Notes Chapter 5 –  Complex Numbers and Quadratic Equations Class 11 Notes Chapter 6 – Linear Inequalities Class 11 Notes Chapter 7 – […]

Random Experiment An experiment whose outcomes cannot be predicted or determined in advance is called a random experiment. Outcome A possible result of a random experiment is called its outcome. Sample Space A sample space is the set of all possible outcomes of an experiment. Events An event is a subset of a sample space […]

Measure of Dispersion The dispersion is the measure of variations in the values of the variable. It measures the degree of scatteredness of the observation in a distribution around the central value. Range The measure of dispersion which is easiest to understand and easiest to calculate is the range. Range is defined as the difference […]

Statements A statement is a sentence which is either true or false, but not both simultaneously. Note: No sentence can be called a statement if It is an exclamation. It is an order or request. It is a question. Simple Statements A statement is called simple if it cannot be broken down into two or […]

Limit Let y = f(x) be a function of x. If at x = a, f(x) takes indeterminate form, then we consider the values of the function which is very near to a. If these value tend to a definite unique number as x tends to a, then the unique number so obtained is called […]

Coordinate Axes In three dimensions, the coordinate axes of a rectangular cartesian coordinate system are three mutually perpendicular lines. These axes are called the X, Y and Z axes. Coordinate Planes The three planes determined by the pair of axes are the coordinate planes. These planes are called XY, YZ and ZX plane and they […]

Circle A circle is the set of all points in a plane, which are at a fixed distance from a fixed point in the plane. The fixed point is called the centre of the circle and the distance from centre to any point on the circle is called the radius of the circle. The equation […]

Distance Formula The distance between two points A(x1, y1) and B (x2, y2) is given by The distance of a point A(x, y) from the origin 0 (0, 0) is given by OA =  Section Formula The coordinates of the point which divides the joint of (x1, y1) and (x2, y2) in the ratio m […]

Sequence A succession of numbers arranged in a definite order according to a given certain rule is called sequence. A sequence is either finite or infinite depending upon the number of terms in a sequence. Series If a1, a2, a3,…… an is a sequence, then the expression a1 + a2 + a3 + a4 + … + an is called series. […]

Binomial Expression An expression consisting of two terms, connected by + or – sign is called binomial expression. Binomial Theorem If a and b are real numbers and n is a positive integer, then The general term of (r + 1)th term in the expression is given by Tr+1 = nCr an-r br Some Important Observations from the Binomial Theorem […]