समीकरण (4x+y=9) और (7x+2y=13) में पहले दो अनुपातों की तुलना से क्या पता चलता है?
What is found by comparing the first two ratios in (4x+y=9) and (7x+2y=13)?
Explanation opens after your attempt
B. (47 \ne 1 / 2) इसलिए एक अद्वितीय हल / 2) so one unique solution
Concept
Here \(4/7 \ne 1/2\) so the lines will intersect. In exams this is the direct condition for a unique solution.
Why this answer is correct
The correct answer is B. \(4 / 7 \ne 1 / 2\) इसलिए एक अद्वितीय हल / 2) so one unique solution. Here \(4/7 \ne 1/2\) so the lines will intersect. In exams this is the direct condition for a unique solution.
Exam Tip
यहां \(4/7 \ne 1/2\) इसलिए रेखाएं कटेंगी। परीक्षा में यह unique solution की सीधी शर्त है।
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