भुजा (p) वाले बड़े वर्ग से ऊपर और दाईं ओर चौड़ाई (q) की दो पट्टियां हटाई जाती हैं। कोने का वर्ग \(q^2\) दो बार हटने से वापस जोड़ा जाता है। शेष क्षेत्रफल क्या होगा?
From a large square of side (p), two strips of width (q) are removed from the top and the right. The corner square \(q^2\) is added back because it was removed twice. What is the remaining area?
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Correct Answer
A. \(p^2-2pq+q^2\)
Concept
After subtracting two strips the common corner must be added back. Exam tip: check overlap when subtracting areas.
Why this answer is correct
The correct answer is A. \(p^2-2pq+q^2\). After subtracting two strips the common corner must be added back. Exam tip: check overlap when subtracting areas.
Exam Tip
दो पट्टियां घटाने के बाद साझा कोना फिर जोड़ना पड़ता है। परीक्षा में घटाए गए भागों की पुनरावृत्ति जांचें।
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