question_answer 1)

Identify the numerical coefficients of terms (other than constants) in the following expressions: (i) \[5-3{{t}^{2}}\]                            (ii) \[1+t+{{t}^{2}}+{{t}^{3}}\]                     (iii) \[x+2xy+3y\]              (iv) \[100m+1000n\] (v) \[-{{p}^{2}}{{q}^{2}}+7pq\]   (vi)  \[1.2a+0.8b\]                            (vii) \[3.14{{r}^{2}}\]                       (viii) \[2(l+b)\] (ix) \[0.1y+0.01{{y}^{2}}\]

Answer:

                (i) \[-3\]                                               (ii) \[1,1,1\]                                         (iii) \[1,2,3\]                        (iv) \[100,1000\] (v) \[-1,7\]                          (vi) \[1.2,0.8\]                    (vii) \[3.14\]                        (viii) \[\text{2},\text{2}\] \[\left| 2(l+b)=2l+2b \right.\]     (ix) \[0.1,0.01\]