(x-2-(p+q)x+pq=0) के मूल कौनसे हैं?
What are the roots of (x-2-(p+q)x+pq=0)?
Explanation opens after your attempt
Correct Answer
A. (x=p,q)
Concept
The equation is equivalent to ((x-p)(x-q)=0), so the roots are (p) and (q). In exams, apply zero product rule to symbolic factors too.
Why this answer is correct
The correct answer is A. (x=p,q). The equation is equivalent to ((x-p)(x-q)=0), so the roots are (p) and (q). In exams, apply zero product rule to symbolic factors too.
Exam Tip
यह समीकरण ((x-p)(x-q)=0) के बराबर है, इसलिए मूल (p) और (q) हैं। परीक्षा में प्रतीकात्मक गुणनखंडों पर भी शून्य गुणनफल नियम लगाएं।
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