यदि \(x^2+px+q=0\) की जड़ें (-2) और (5) हैं, तो (p-q) का मान क्या है?
If the roots of \(x^2+px+q=0\) are (-2) and (5), what is (p-q)?
Explanation opens after your attempt
A. (7)
Concept
The sum of roots is (3), so (p=-3). The product is (-10), so (q=-10), hence (p-q=7).
Why this answer is correct
The correct answer is A. (7). The sum of roots is (3), so (p=-3). The product is (-10), so (q=-10), hence (p-q=7).
Exam Tip
जड़ों का योग (3) है, इसलिए (p=-3)। गुणनफल (-10) है, इसलिए (q=-10), अतः (p-q=7)।
Login to save your score, XP, coins and progress.
