यदि (f(x)=x-2-6x+11), तो (f) का न्यूनतम मान क्या है?
If (f(x)=x-2-6x+11), what is the minimum value of (f)?
Explanation opens after your attempt
A. (2)
Concept
Since (x-2-6x+11=(x-3)2+2), the minimum value is (2). Completing the square is the fastest method here.
Why this answer is correct
The correct answer is A. (2). Since (x-2-6x+11=(x-3)2+2), the minimum value is (2). Completing the square is the fastest method here.
Exam Tip
(x-2-6x+11=(x-3)2+2), इसलिए न्यूनतम मान (2) है। पूर्ण वर्ग बनाना ऐसे प्रश्नों में सबसे तेज विधि है।
Login to save your score, XP, coins and progress.
