| Row | Expression | Coefficient of \[{{m}^{2}}\] | Coefficient of mn | Coefficient of \[{{n}^{2}}\] |
| A | \[{{m}^{2}}-5mn+3m+{{n}^{2}}\] | 1 | \[-5\] | 1 |
| B | \[{{n}^{2}}+5mn-6m+2m\] | 0 | 5 | 1 |
| C | \[{{m}^{2}}+45mn-17m+2\] | 1 | 45 | 0 |
| D | \[2{{n}^{2}}-23mn+7\] | 2 | \[-23\] | 1 |
A) Row A
B) Row B
C) Row C
D) Row D
Correct Answer: D
Solution :
(d) Since in (d), term containing \[{{n}^{2}}\] is\[2{{n}^{2}}\] \[\therefore \] Coefficient of \[{{n}^{2}}\]is\[2\].
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