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

Subjects
0 reads0 ratings0 helpful

If D = 0 and at least one auxiliary determinant is non-zero, what is the solution status of the pair?

Answer and explanation

Correct answer: No solution

For a pair of linear equations, let D be the determinant of the coefficients of x and y, while Dx and Dy are the auxiliary determinants. Cramer's rule gives a unique solution only when D is non-zero. If D = 0, the coefficient rows are dependent, so the represented lines are either coincident or parallel. When at least one auxiliary determinant is non-zero, the corresponding ratios are not all equal; hence the equations are inconsistent. Geometrically, the lines are distinct and parallel. They have no common point, so the pair has no solution. Therefore option C is correct, whereas infinitely many solutions require D = Dx = Dy = 0.

Related tags

Class10Linear-EquationsDeterminantsConditions For SolvabilityPair Of Linear Equations In Two VariablesMathematicsClass 10 Mcq

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.