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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।

MathematicsA student says that if the decimal expansion of a number is non-terminating and non-repeating, then the number is irrational. What is the correct analysis of this statement?Class 9Number SystemsReal NumbersLevel 3Hard MathematicsWhat is the value of (2\sqrt{3}+\sqrt{27})?Class 9Number SystemsReal NumbersLevel 3Hard MathematicsIf (0.1010010001\ldots) is the decimal expansion then this number is?Class 9Number SystemsReal NumbersLevel 3Hard MathematicsWhat is the value of (1/(3+√8)+1/(3−√8))?Class 9Number SystemsIrrational numbersLevel 2Hard MathematicsWhich product gives a rational number?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhat is the correct statement about ( \sqrt{36}+\sqrt{49} ) and ( \sqrt{85} )?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhat is the value of ( \sqrt{ab}\times\sqrt{ab} ) where (ab\geq0)?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhich example shows that \(\sqrt{a+b}=\sqrt a+\sqrt b\) is false?Class 9Number SystemsReal NumbersLevel 2Medium MathematicsIf \(21<\sqrt{m}<22\), which range is correct for \(m\)?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsIf ( \sqrt{n} ) lies between (18) and (19), which range is correct for (n)?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhat is the simplified form of ( (4-\sqrt{3})^3 )?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhat is the simplified form of ( (3+\sqrt{5})^3 )?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhat is the value of (1/(√13+2)+1/(√13−2))?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhich of the following statements about rational and irrational numbers is correct?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsIf \(x\) is an irrational number and \(r\) is a rational number, which of the following statements is always true?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhich statement is correct about \(\sqrt{32}+\sqrt{18}\) and \(7\sqrt{2}\)?Class 9Number SystemsReal NumbersLevel 2Hard 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 NumbersLevel 2Hard MathematicsWhat is the correct simplified form of ( |4-\sqrt{27}| )?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsIf \(x=-9\), what is the value of \(\sqrt{x^2}+3x\)?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsIf \(a\) and \(b\) are real numbers, what is the value of \(\sqrt{(a-b)^2}\)?Class 9Number SystemsReal NumbersLevel 2Hard