एक दृश्य मॉडल में ((x+y)2), ((x-y)2) और (4xy) तीन क्षेत्र दिखाए गए हैं। सही संबंध कौन सा है?
A visual model shows three areas ((x+y)2), ((x-y)2), and (4xy). Which relation is correct?
Explanation opens after your attempt
Correct Answer
A. ((x+y)2=(x-y)2+4xy)
Concept
Since ((x+y)2-(x-y)2=4xy), the first square is greater than the second by (4xy). Exam tip: remember the difference of these two squares.
Why this answer is correct
The correct answer is A. ((x+y)2=(x-y)2+4xy). Since ((x+y)2-(x-y)2=4xy), the first square is greater than the second by (4xy). Exam tip: remember the difference of these two squares.
Exam Tip
क्योंकि ((x+y)2-(x-y)2=4xy), इसलिए पहला वर्ग दूसरे से (4xy) अधिक है। परीक्षा में दोनों वर्गों का अंतर याद रखें।
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