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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।

MathematicsIf \(x=\sqrt{2}+\sqrt{3}\), which argument correctly disproves the assumption that \(x\) is rational?Class 9Number SystemsProof of irrationality of square root 2 and square root 3Level 18Expert MathematicsIf r = 1/(√17 + 4), which is the simplified form of r?Class 9Number SystemsIrrational numbersLevel 15Medium MathematicsIf x = √5 + √2 and y = √5 − √2, what is the value of x/y?Class 9Number SystemsIrrational numbersLevel 14Medium MathematicsWhat is the value of 1/(√3 + √2) + 1/(√3 − √2)?Class 9Number SystemsIrrational numbersLevel 13Hard MathematicsIf \(x=4-\sqrt7\), what is \(\frac1x\)?Class 9Number SystemsReal NumbersLevel 2Medium MathematicsWhat is the value of \(\left(\sqrt{10}+\sqrt{3}\right)\left(\sqrt{10}-\sqrt{3}\right)\)?Class 9Number SystemsReal NumbersLevel 2Hard MathematicsWhat is the value of 1/(2 + √3) + 1/(2 − √3)?Class 9Number SystemsReal NumbersLevel 5Hard MathematicsWhat is the value of \(\frac{1}{\sqrt{11}+3}+\frac{1}{\sqrt{11}-3}\)?Class 9Number SystemsReal NumbersLevel 1Hard MathematicsIf \(x=\sqrt5+2\), what is the value of \(x+\frac1x\)?Class 9Number SystemsReal NumbersLevel 1Medium MathematicsIf \(x=3-\sqrt5\), what is \(\frac1x\)?Class 9Number SystemsProof of irrationality of square root 2 and square root 3Level 1Medium MathematicsWhat is the value of \(\frac{1}{3-\sqrt7}+\frac{1}{3+\sqrt7}\)?Class 9Number SystemsReal NumbersLevel 1Medium MathematicsWhat is the value of (3 + √2)/(3 − √2) + (3 − √2)/(3 + √2)?Class 9Number SystemsReal NumbersLevel 5Hard MathematicsWhat is the value of \((6+\sqrt{23})(6-\sqrt{23})\)?Class 9Number SystemsReal NumbersLevel 3Medium MathematicsWhat is the rationalised form of 1/(√10 + √9)?Class 9Number SystemsReal NumbersLevel 4Medium MathematicsWhat is the value of (2+√5)(2−√5)?Class 9Number SystemsReal NumbersLevel 6Easy MathematicsWhich expression will be obtained in the numerator when the denominator of \(\frac{1}{3-\sqrt{5}}\) is rationalised?Class 9Number SystemsReal NumbersLevel 6Easy