## NCERT Solutions for Class 11th Math Chapter 16 – Probablity

Exercise 16.1 : Solutions of Questions on Page Number : 386 Q1 :Describe the sample space for the indicated experiment: A coin is tossed three times. Answer : A coin has two faces: head (H) and tail (T). When a coin is tossed three times, the total number of possible outcomes is 23 = 8 … Read more

## NCERT Solutions for Maths Class 11th Chapter 15 – Statistics

Exercise 15.1 : Solutions of Questions on Page Number : 360 Q1 :Find the mean deviation about the mean for the data 4, 7, 8, 9, 10, 12, 13, 17 Answer : The given data is 4, 7, 8, 9, 10, 12, 13, 17 Mean of the data, The deviations of the respective observations from … Read more

## NCERT Solutions for Class 11th Chapter 14 – Mathematical Reasoning

Exercise 14.1 : Solutions of Questions on Page Number : 324 Q1 :Which of the following sentences are statements? Give reasons for your answer. (i) There are 35 days in a month. (ii) Mathematics is difficult. (iii) The sum of 5 and 7 is greater than 10. (iv) The square of a number is an … Read more

## NCERT Solutions for Class 11th Math Chapter 13 – Limits and Derivatives

Exercise 13.1 : Solutions of Questions on Page Number : 301 Q1 :Evaluate the Given limit:  Answer : Q2 :Evaluate the Given limit: Answer : Q3 :Evaluate the Given limit: Answer : Q4 :Evaluate the Given limit: Answer : Q5 :Evaluate the Given limit: Answer : Q6 :Evaluate the Given limit: Answer : Put x … Read more

## NCERT Solutions Class 11 Chapter12- Introduction to Three Dimensional Geometry Class 11

Exercise 12.1 : Solutions of Questions on Page Number : 271 Q1 :A point is on the x-axis. What are its y-coordinates and z-coordinates? Answer : If a point is on the x-axis, then its y-coordinates and z-coordinates are zero. Q2 :A point is in the XZ-plane. What can you say about its y-coordinate? Answer … Read more

## NCERT Solution Class 11 ch-11 Conic Section

Exercise 11.1 : Solutions of Questions on Page Number : 241 Q1 :Find the equation of the circle with centre (0, 2) and radius 2 Answer : The equation of a circle with centre (h, k) and radius r is given as (x­ – h)2 + (y ­- k)2 = r2 It is given that … Read more

## NCERT Solution Class 11 ch-10 Straight Lines

Exercise 10.1 : Solutions of Questions on Page Number : 211 Q1 : Draw a quadrilateral in the Cartesian plane, whose vertices are (-4, 5), (0, 7), (5, -5) and (-4, -2). Also, find its area. Answer : Let ABCD be the given quadrilateral with vertices A (-4, 5), B (0, 7), C (5, -5), … Read more

## NCERT Solution Class11 Chapter-9 Sequence And Series

Exercise 9.1 : Solutions of Questions on Page Number : 180 Q1 :Write the first five terms of the sequences whose nth term is an = n (n+2) Answer : an = n (n+2) Substituting n = 1, 2, 3, 4, and 5, we obtain Therefore, the required terms are 3, 8, 15, 24, and … Read more

## NCERT Solution Class11 Chapter-8 Binomial theorem

Exercise 8.1 : Solutions of Questions on Page Number : 166 Q1 : Expand the expression (1- 2x)5 Answer : By using Binomial Theorem, the expression (1- 2x)5 can be expanded as Q2 : Expand the expression  Answer : By using Binomial Theorem, the expression  can be expanded as Q3 : Expand the expression (2x … Read more

## NCERT Solutions for Class 11th Maths Ch-7 “Permutations and Combinations”

Exercise 7.1 : Solutions of Questions on Page Number : 138 Q1 :How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that (i) repetition of the digits is allowed? (ii) repetition of the digits is not allowed? Answer : (i) There will be as many ways as there … Read more

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