Solutions for Class 11 Maths Chapter 7 Exercise 7.1 Page No: 138 1. 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? Solution: (i) Let the 3-digit number be ABC, where C […]
NCERT Solutions for Class 11 Maths Chapter 7- Permutations and Combinations Read More »
Solution for Class 11 Maths Chapter 6 Linear Inequalities Exercise 6.1 Page No: 122 1. Solve 24x < 100, when (i) x is a natural number. (ii) x is an integer. Solution: (i) Given that 24x < 100 Now we have to divide the inequality by 24 then we get x < 25/6 Now when
NCERT Solutions for Class 11 Maths Chapter 6- Linear Inequalities Read More »
NCERT Solutions for Class 11 Maths Chapter 5 Exercise 5.1 Page No: 103 Express each of the complex number given in the Exercises 1 to 10 in the form a + ib. 1. (5i) (-3/5i) Solution: (5i) (-3/5i) = 5 x (-3/5) x i2 = -3 x -1 [i2 = -1] = 3 Hence, (5i) (-3/5i)
NCERT Solutions for Class 11 Maths Chapter 5- Complex Numbers and Quadratic Equations Read More »
NCERT Solutions for Class 11 Maths Chapter 4 Exercise 4.1 page: 94 Prove the following by using the principle of mathematical induction for all n ∈ N: 1. Solution: P (k + 1) is true whenever P (k) is true. Therefore, by the principle of mathematical induction, statement P (n) is true for all natural
NCERT Solutions for Class 11 Maths Chapter 4- Principle of Mathematical Induction Read More »
NCERT Solutions for Class 11 Maths Chapter 3 Exercise 3.1 page: 54 1. Find the radian measures corresponding to the following degree measures: (i) 25° (ii) – 47° 30′ (iii) 240° (iv) 520° Solution: (iv) 520° 2. Find the degree measures corresponding to the following radian measures (Use π = 22/7) (i) 11/16 (ii) -4
NCERT Solutions for Class 11 Maths Chapter 3- Trigonometric Functions Read More »
NCERT Solutions for Class 11 Maths Chapter 2 Exercise 2.1 Page No: 33 1. If , find the values of x and y. Solution: Given, As the ordered pairs are equal, the corresponding elements should also be equal. Thus, x/3 + 1 = 5/3 and y – 2/3 = 1/3 Solving, we get x + 3 = 5 and
NCERT Solutions for Class 11 Maths Chapter 2- Relations And Functions Read More »
NCERT Solutions for Class 11 Maths Chapter 1- Sets Exercise 1.1 page: 4 1. Which of the following are sets? Justify our answer. (i) The collection of all months of a year beginning with the letter J. (ii) The collection of ten most talented writers of India. (iii) A team of eleven best-cricket batsmen of the world. (iv) The
NCERT Solutions for Class 11 Maths Chapter 1 – Sets Read More »
Topics and Subtopics in NCERT Solutions for Class 12 Physics Chapter 15 Communication Systems: Section Name Topic Name 15 Communication Systems 15.1 Introduction 15.2 Elements of a Communication System 15.3 Basic Terminology Used in Electronic Communication Systems 15.4 Bandwidth of Signals 15.5 Bandwidth of Transmission Medium 15.6 Propagation of Electromagnetic Waves 15.7 Modulation and its Necessity
NCERT Solutions For Class 12 Physics Chapter 15 Communication Systems Read More »
Topics and Subtopics in NCERT Solutions for Class 12 Physics Chapter 14 Semiconductors: Section Name Topic Name 14 Semiconductors 14.1 Introduction 14.2 Classification of Metals, Conductors and Semiconductors 14.3 Intrinsic Semiconductor 14.4 Extrinsic Semiconductor 14.5 p-n Junction 14.6 Semiconductor Diode 14.7 Application of Junction Diode as a Rectifier 14.8 Special Purpose p-n Junction Diodes 14.9 Junction
NCERT Solutions For Class 12 Physics Chapter 14 Semiconductors Read More »
Topics and Subtopics in NCERT Solutions for Class 12 Physics Chapter 13 Nuclei: Section Name Topic Name 13 Nuclei 13.1 Introduction 13.2 Atomic Masses and Composition of Nucleus 13.3 Size of the Nucleus 13.4 Mass-Energy and Nuclear Binding Energy 13.5 Nuclear Force 13.6 Radioactivity 13.7 Nuclear Energy
NCERT Solutions For Class 12 Physics Chapter 13 Nuclei Read More »
