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 …
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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 …
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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) …
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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 …
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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 …
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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 …
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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 …
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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 …
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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 …
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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
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