( (2m+n-1)2 ) में (mn) वाला पद क्या है?
What is the (mn)-term in ( (2m+n-1)2 )?
Explanation opens after your attempt
C. (4mn)
Concept
From (2m) and (n), \(2\cdot2m\cdot n=4mn\). Exam tip: look only at the related pair.
Why this answer is correct
The correct answer is C. (4mn). From (2m) and (n), \(2\cdot2m\cdot n=4mn\). Exam tip: look only at the related pair.
Exam Tip
(2m) और (n) से \(2\cdot2m\cdot n=4mn\) मिलता है। परीक्षा में केवल संबंधित जोड़े को देखें।
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