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Overview There are 3 questions in Class 9 Maths Exercise 1.5. The questions and their solutions are explained in easy language. Question/Answers Class 9 Maths Exercise 1.5 S.No. Question/Answers Q.1. Find: (i) 64½ (ii) 32⅕ (iii) 125⅓ Ans. (i) 64½ = (8²)½ = 81 (as 2×1/2 =1) = 8(ii) 32⅕ = (2⁵)⅕ = 21 (as …

Overview Consider an example from everyday life. When we go to see a movie with family or friends, we always try to get adjacent seats so that we can sit together. As a result, we prefer seats that are adjacent to one another!Likewise, Consecutive numbers are those that come after each other in a regular …

What is Prime Factorization “Prime Factorization” is the process of determining which prime numbers multiply together to form the original number. Prime numbers are numbers that have only two factors, 1 and the number itself. For example 2, 3, 4, 5, and so on. Example What are the Prime Factors of 14? It is best, …

Overview Composite numbers are defined as numbers with more than two factors. Non-prime numbers are composite numbers because they can be divided by more than two numbers. Example: 4 has more than two factors i.e. 1, 2, and 4. So 4 is a composite number. Types of Composite Numbers There are two types of Composite …

Overview Prime numbers are those that are greater than 1. They have exactly two factors, 1 and the number itself. This means that these numbers cannot be divided by any number other than 1 and the number itself. Some examples of Prime Numbers are 7, 31, 83, 239, 953.The number 39 is the product of …

Overview There are 5 questions in Class 9 Maths Exercise 1.4. The questions and their solutions with examples are explained in easy language. Question/Answers S.No. Question & Answer Q.1. Classify the following numbers as rational or irrational.(i) 2-√5 (ii) (3+√23)-√23 (iii) 2√7/7√7(iv) 1/√2 (v) 2π Ans. (i) Since, it is the difference between a rational …

Overview There are 9 questions in Class 9 Maths Exercise 1.3. The questions and their solutions with examples are explained in easy language. Question/Answers S.No. Question & Answer Q.1. Write the following in decimal form and say what kind of decimal expansion each has:(i) 36/100 (ii) 1/11 (iii) 4⅛(iv) 3/13 (v) 2/11 (vi) 329/400 Ans. …

Overview There are 3 questions and 1 activity in Class 9 Maths Exercise 1.2. The questions and their solutions with examples are explained in easy language. Question/Answers S.No. Question & Answer Q1. State whether the following statements are true or false. Justify your answers. (i) Every irrational number is a real number.(ii )Every point on …

History of Imaginary Numbers Imaginary numbers were first developed by a Greek mathematician named Hero of Alexandria. The formulas for multiplying fictitious numbers were created later in 1572 by the Italian mathematician Gerolamo Cardano. The square roots of negative numbers can be calculated using these numbers. Let’s discover more about imaginary numbers, including their meaning, …

Definition Of Integers Integers are a set of natural numbers that include zero and negative natural numbers.For example:…,-3,-2,-1,0, 1, 2, 3,…. We can write an integer as a product of prime numbers. Also we can find the HCF and LCM of two integers by first writing each one as a product of prime numbers.The collection …