\( 49^2 \) निकालने के लिए (49) को किस रूप में लिखना सबसे सरल है?
To calculate \(49^2\), writing (49) in which form is simplest?
Explanation opens after your attempt
C. (50-1)
Concept
Writing (49=50-1) makes use of ( (a-b)2 ) easy. Exam tip: take a nearby round number.
Why this answer is correct
The correct answer is C. (50-1). Writing (49=50-1) makes use of ( (a-b)2 ) easy. Exam tip: take a nearby round number.
Exam Tip
(49=50-1) लिखने से ( (a-b)2 ) का उपयोग आसान होता है। परीक्षा में नजदीकी गोल संख्या लें।
Login to save your score, XP, coins and progress.
