भुजा \(t+1\) वाले वर्ग का क्षेत्र मॉडल किस परिणाम तक पहुंचाता है?
The area model of a square with side \(t+1\) leads to which result?
Explanation opens after your attempt
D. \(t^2+2t+1\)
Concept
Because of two \(t\) rectangles, the middle term is \(2t\). Exam tip: also add \(1^2=1\).
Why this answer is correct
The correct answer is D. \(t^2+2t+1\). Because of two \(t\) rectangles, the middle term is \(2t\). Exam tip: also add \(1^2=1\).
Exam Tip
दो \(t\) आयतों के कारण बीच का पद \(2t\) बनता है। परीक्षा में \(1^2=1\) भी जोड़ें।
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