समीकरण (9x+py=27) और (3x+5y=11) का अद्वितीय हल होने के लिए कौन-सी शर्त सही है?
Which condition is correct for (9x+py=27) and (3x+5y=11) to have a unique solution?
Explanation opens after your attempt
B. \(p \ne 15\)
Concept
For a unique solution, \(9/3 \ne p/5\) must hold. Therefore, \(p \ne 15\) is the correct condition.
Why this answer is correct
The correct answer is B. \(p \ne 15\). For a unique solution, \(9/3 \ne p/5\) must hold. Therefore, \(p \ne 15\) is the correct condition.
Exam Tip
अद्वितीय हल के लिए \(9/3 \ne p/5\) होना चाहिए। इसलिए \(p \ne 15\) सही शर्त है।
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