Skip to content

Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

RELATED QUESTIONS

Error Analysis

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

MathematicsA water tank initially contains 120 litres of water, and water is added at a constant rate of 8 litres per minute. A student writes \(W=120t+8\) for water quantity \(W\) and time \(t\). What is the error in the model?Class 9Introduction to PolynomialsSlope and y-interceptLevel 40Hard MathematicsA student writes that the zero of the polynomial \(p(x)=3x+15\) is \(5\). What is the error in the student's solution?Class 9Introduction to PolynomialsLinear polynomialsLevel 34Expert MathematicsKavya says that if \(p(x)=m(x-5)\), where \(m\ne0\), the zero of the polynomial will change with the value of \(m\). Which option correctly explains the error in her statement?Class 9Introduction to PolynomialsLinear polynomialsLevel 35Hard MathematicsA student says that \(p(x)=\frac{6x^2-18x}{3x}\) is a linear polynomial because it can be written as \(2x-6\). Which statement is correct?Class 9Introduction to PolynomialsLinear polynomialsLevel 34Hard MathematicsReena claims that \(7-2x+5x^2\) is a linear polynomial because it contains an \(x\)-term. What is the correct evaluation of her claim?Class 9Introduction to PolynomialsLinear polynomialsLevel 33Medium MathematicsA student says that the degree of the polynomial \(7-4x^3+x^6-2x^8\) is 6 because the term containing \(x^6\) is written in the middle. What is the student's error?Class 9Introduction to PolynomialsDegree of a PolynomialLevel 29Expert MathematicsA student says that the degree of the polynomial \(P(x)=5x^2-x^5+9\) is 2 because the first term is \(5x^2\). Which is the correct correction of the student's error?Class 9Introduction to PolynomialsDegree of a PolynomialLevel 30Medium MathematicsA student wrote the degree of the polynomial \(p(y)=8y^4-y^7+5\) as 4 because they considered the first term \(8y^4\). What is the correct degree?Class 9Introduction to PolynomialsDegree of a PolynomialLevel 29Medium MathematicsA student says that the degree of the polynomial \(4x^2-7x^5+3\) is 2 because the first term is \(4x^2\). What is the correct correction to the student's error?Class 9Introduction to PolynomialsDegree of a PolynomialLevel 33Easy MathematicsWhich statement is correct for (r^3s^2) and (r^2s^3)?Class 9Introduction to PolynomialsAlgebraic expressionsLevel 25Expert MathematicsWhich statement is correct for (x^2y) and (xy^2)?Class 9Introduction to PolynomialsAlgebraic expressionsLevel 24Expert MathematicsWhich option correctly identifies the mistake in treating (x^2y) and (xy^2) as like terms?Class 9Common QuestionsLike and Unlike TermsLevel 23Medium MathematicsRima wrote the length of a rectangle as \(x+3\) m and its breadth as \(x-3\) m, and stated that its area is \(x^2+9\) m². Which is the correct analysis of her error?Class 9Introduction to PolynomialsAlgebraic expressionsLevel 23Hard MathematicsA student constructed ( \sqrt{7} ) and then did not draw the next unit side perpendicular. Which conclusion is correct?Class 9Number SystemsSquare root spiralLevel 22Expert MathematicsIf the first segment (OA) is mistakenly taken as (2) units and (AB=1), what will be the first hypotenuse?Class 9Number SystemsSquare root spiralLevel 20Expert MathematicsWhich statement is most incorrect from the construction point of view in a square-root spiral?Class 9Number SystemsSquare root spiralLevel 20Hard MathematicsWhile constructing a square root spiral, Reema drew a 1-unit line parallel to the hypotenuse of the previous triangle to form the next triangle. What is the main error in her construction?Class 9Number SystemsSquare root spiralLevel 20Hard MathematicsA student has constructed a square root spiral up to \(\sqrt{12}\). To obtain \(\sqrt{13}\), she draws a perpendicular of length 1 unit at the end of the last radius. Which conclusion is correct?Class 9Number SystemsSquare root spiralLevel 20Hard MathematicsWhile constructing a square root spiral, Reema used a new side of √2 units to make the triangle after the point representing √7 . What is her mistake?Class 9Number SystemsSquare root spiralLevel 19Hard MathematicsA student says that in a square root spiral, the length of the next hypotenuse after \(\sqrt{14}\) will be \(\sqrt{14}+1\). Which reasoning correctly shows the error in this statement?Class 9Number SystemsSquare root spiralLevel 19Hard