Category: NCERT Solutions

Prove that: 1. Solution: 2. Solution: Here = 1/2 + 4/4 = 1/2 + 1 = 3/2 = RHS 3. Solution: 4. Solution: 5. Find the value of: (i) sin 75o (ii) tan 15o Solution: Read More

Find the principal and general solutions of the following equations: 1. tan x = √3 Solution: 2. sec x = 2 Solution: 3. cot x = – √3 Solution: 4. cosec x = – 2 Read More

Miscellaneous Exercise page: 81 Prove that: 1. Solution: We get = 0 = RHS 2. (sin 3x + sin x) sin x + (cos 3x – cos x) cos x = 0 Solution: Consider LHS = (sin 3x + sin x) sin x Read More

NCERT Solutions For Class 11 Math Chapter – 1 Exercise – 1.2 1. Which of the following are examples of the null set (i) Set of odd natural numbers divisible by 2 (ii) Set of Read More

NCERT Solutions For Class 11 Math Chapter – 1 Exercise – 1.4 1. Find the union of each of the following pairs of sets: (i) X = {1, 3, 5} Y = {1, 2, 3} (ii) A Read More

NCERT Solutions For Class 11 Math Chapter – 1 Exercise – 1.5 1. Let U = {1, 2, 3; 4, 5, 6, 7, 8, 9}, A = {1, 2, 3, 4}, B = {2, 4, Read More

NCERT Solutions For Class 11 Math Chapter – 1 Exercise – 1.6 1. If X and Y are two sets such that n(X) = 17, n(Y) = 23 and n(X ∪ Y) = 38, find n(X ∩ Y). Solution: Given n (X) Read More

NCERT Solutions For Class 11 Math Chapter – 1 Miscellaneous Exercise  a1. Decide, among the following sets, which sets are subsets of one and another: A= {x: x ∈ R and x satisfy x2 – 8x Read More

NCERT Solutions For Class 11 Math Chapter – 1 Exercise – 1.3 1. Make correct statements by filling in the symbols ⊂ or ⊄ in the blank spaces: (i) {2, 3, 4} … {1, 2, 3, Read More

NCERT Solutions For Class 11 Math Chapter – 1 Exercise – 1.1 1. Which of the following are sets? Justify our answer. (i) The collection of all months of a year beginning with the letter J. Read More