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

MathematicsWhich option is an irrational number between (6) and (7)?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the value of ( \sqrt{\frac{100}{169}}-\sqrt{\frac{9}{64}} )?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the value of ( \sqrt{\frac{25}{49}}+\sqrt{\frac{16}{81}} )?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the value of \(\left(\sqrt{6.25}-\sqrt{0.64}\right)\)?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsA student says that the sum of two irrational numbers is always irrational. Which of the following examples disproves the statement?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsA student says that if the denominator of a fraction in simplest form has a prime factor other than 2 and 5, its decimal expansion is non-terminating recurring. Which of the following fractions supports the student's statement?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the value of ( \sqrt{242}\div\sqrt{2} )?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the value of √45 × √80?Class 9Number SystemsReal NumbersLevel 3Easy MathematicsA student says that the decimal expansion of every irrational number is non-terminating and recurring. Why is this statement incorrect?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhich of the following numbers has a non-terminating, non-repeating decimal expansion and is therefore irrational?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the simplified form of \(3\sqrt{54}+2\sqrt{150}\)?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the simplified form of ( \sqrt{128}+\sqrt{200}-\sqrt{72} )?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the rationalised form of \(\frac{1}{\sqrt{17}-\sqrt{8}}\)?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the rationalised form of ( \frac{1}{\sqrt{13}+\sqrt{12}} )?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the rationalised form of ( \frac{9}{4\sqrt{5}} )?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the rationalised form of ?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsA student says that \(\sqrt{2}+\sqrt{8}\) is an irrational number. Why is the statement correct?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the value of \((6+\sqrt{23})(6-\sqrt{23})\)?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the simplified form of (7 − √3)²?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhich of the following statements about decimal expansions is correct?Class 9Number SystemsReal NumbersLevel 3Medium