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Number Classification

Class 9 Mathematics के इस tag से जुड़े questions। हर question के साथ chapter, topic, level और difficulty दी गई है।

MathematicsWhich of the following properties identifies an irrational number?Class 9Number SystemsIrrational numbersMedium MathematicsWhat type of number is \((\sqrt{81}+\sqrt{2})\)?Class 9Number SystemsIrrational numbersEasy MathematicsWhich option contains only rational numbers?Class 9Number SystemsReal NumbersExpert MathematicsWhich option contains only irrational numbers?Class 9Number SystemsReal NumbersExpert MathematicsWhich number is both rational and an integer?Class 9Number SystemsRational numbersHard Mathematics(3+√2) belongs to which set?Class 9Number SystemsIrrational numbersMedium MathematicsLet \(x=\sqrt{2}+\sqrt{3}\). Which classification of \(x\) and \(x^2\) is correct?Class 9Number SystemsReal NumbersHard MathematicsWhat type of number is \(\sqrt{3}\times\sqrt{21}\)?Class 9Number SystemsIrrational numbersMedium MathematicsA square has a side length of 5 cm. What type of number is the length of its diagonal?Class 9Number SystemsReal NumbersMedium MathematicsWhat type of number is \(\sqrt{5}\times\sqrt{20}\)?Class 9Number SystemsReal NumbersMedium MathematicsA student considers the number 0.101001000100001... to be rational because its decimal expansion consists of digits. Which is the correct evaluation of this conclusion?Class 9Number SystemsReal NumbersEasy MathematicsWhich option contains two numbers that are both rational real numbers?Class 9Number SystemsRational numbersEasy MathematicsWhich of the following real numbers is neither positive nor negative?Class 9Number SystemsReal NumbersEasy MathematicsLet W = {x : x ∈ N and x is less than the smallest two-digit number}. What is its roster form?Class 9Number SystemsGeneral chapter practiceEasy