समीकरणों (15x+py=45) और (7x+2y=24) का अद्वितीय हल होने के लिए कौन-सी शर्त सही है?
Which condition is correct for the equations (15x+py=45) and (7x+2y=24) to have a unique solution?
Explanation opens after your attempt
B. (p \ne 307)
Concept
For a unique solution, \(15/7 \ne p/2\) must hold. Therefore, \(p \ne 30/7\) is the correct condition.
Why this answer is correct
The correct answer is B. \(p \ne 30 / 7\). For a unique solution, \(15/7 \ne p/2\) must hold. Therefore, \(p \ne 30/7\) is the correct condition.
Exam Tip
अद्वितीय हल के लिए \(15/7 \ne p/2\) होना चाहिए। इसलिए \(p \ne 30/7\) सही शर्त है।
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