Mathematics Answer, Explanation and Revision Hints
\( 49^2 \) को ( (50-1)2 ) से निकालिए। / Find \( 49^2 \) using ( (50-1)2 ).
Correct Answer: A. (2401). Explanation: ( (50-1)2=2500-100+1=2401 )। परीक्षा में ( (a-b)2 ) में बीच का पद घटता है। / ( (50-1)2=2500-100+1=2401 ). Exam tip: the middle term is subtracted in ( (a-b)2 ).
Which concept should I revise for this Mathematics MCQ?
( (50-1)2=2500-100+1=2401 ). Exam tip: the middle term is subtracted in ( (a-b)2 ).
What exam hint can help solve this Mathematics question?
( (50-1)2=2500-100+1=2401 )। परीक्षा में ( (a-b)2 ) में बीच का पद घटता है।
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