पूर्ण वर्ग बनाते समय \(x^2-22x\) में कौनसा पद जोड़ना होगा?
While completing the square, which term must be added to \(x^2-22x\)?
Explanation opens after your attempt
Correct Answer
A. (121)
Concept
Half of (-22) is (-11), and ((-11)2=121). In exams, the square of half the coefficient is always positive.
Why this answer is correct
The correct answer is A. (121). Half of (-22) is (-11), and ((-11)2=121). In exams, the square of half the coefficient is always positive.
Exam Tip
(-22) का आधा (-11) है और ((-11)2=121) होता है। परीक्षा में आधे गुणांक का वर्ग हमेशा धनात्मक होता है।
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