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Class 9 Mathematics

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

MathematicsIf (x=\sqrt{169}+\sqrt{25}), what is (x)?Class 9Number SystemsReal NumbersExpert MathematicsIf (a=\sqrt{2}) and (b=\sqrt{8}), what is (ab)?Class 9Number SystemsReal NumbersExpert MathematicsWhich of the following decimal expansions represents an irrational number?Class 9Number SystemsReal NumbersExpert MathematicsWhich option is a real number?Class 9Number SystemsReal NumbersExpert MathematicsWhich decimal terminates?Class 9Number SystemsDecimal representationExpert MathematicsIf (x=\sqrt{27}-\sqrt{12}) then what is the value of (x)?Class 9Number SystemsReal NumbersHard MathematicsWhich is the correct classification of real numbers?Class 9Number SystemsReal NumbersHard MathematicsWhat is the value of (\sqrt{48}-2\sqrt{3})?Class 9Number SystemsReal NumbersHard MathematicsIf \(x\) is an irrational number and \(r\) is a rational number, which of the following statements is always true?Class 9Number SystemsReal NumbersHard MathematicsA student says that the product of two irrational numbers is always irrational. Which of the following examples proves the statement wrong?Class 9Number SystemsReal NumbersHard MathematicsIf \(r\) is a rational number and \(x\) is an irrational number, which of the following will always be irrational?Class 9Number SystemsReal NumbersHard MathematicsWhich of the following numbers is irrational because its decimal expansion is non-terminating and non-repeating?Class 9Number SystemsReal NumbersHard MathematicsWhich of the following numbers is definitely irrational?Class 9Number SystemsReal NumbersHard MathematicsWhich of the following numbers has a non-terminating, non-repeating decimal expansion?Class 9Number SystemsReal NumbersMedium MathematicsA student writes: \(\sqrt{2}+\sqrt{8}=\sqrt{10}\). Which is the correct evaluation of this statement?Class 9Number SystemsReal NumbersMedium MathematicsA square has a side length of 5 cm. What type of number is the length of its diagonal?Class 9Number SystemsReal NumbersMedium MathematicsA square tile has a side length of 1 cm. According to the Pythagorean theorem, its diagonal is \(\sqrt{2}\) cm. Which statement about this length is correct?Class 9Number SystemsReal NumbersMedium MathematicsA student simplifies \\(\sqrt{50}\\) as \\(5\sqrt{2}\\) and calls it an irrational number. Which evaluation of the student's conclusion is correct?Class 9Number SystemsReal NumbersMedium MathematicsWhat is the simplified form of \(4\sqrt{27}-2\sqrt{75}\)?Class 9Number SystemsReal NumbersMedium MathematicsThe area of a square is 18 cm². Which option correctly gives its side length and perimeter?Class 9Number SystemsReal NumbersMedium