( (x+3y)2 ) में \(y^2\) का गुणांक क्या है?
What is the coefficient of \(y^2\) in ( (x+3y)2 )?
Explanation opens after your attempt
C. (9)
Concept
((3y)2=9y-2). Exam tip: do not forget to square the coefficient in the last term.
Why this answer is correct
The correct answer is C. (9). ((3y)2=9y-2). Exam tip: do not forget to square the coefficient in the last term.
Exam Tip
((3y)2=9y-2) है। परीक्षा में अंतिम पद में गुणांक का वर्ग लेना न भूलें।
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